Vocab for Teachers
Idioms & Fixed Expressions
🔴 Advanced

Expressions for Explaining and Clarifying: In Other Words, What I Mean Is, To Put It Differently

What this session covers

In academic discussion, presentations, and professional writing, speakers and writers often need to explain or rephrase what they have just said. Sometimes the first attempt was complex; sometimes the listener did not understand; sometimes the speaker wants to add precision. English has fixed expressions for these situations. 'In other words' (the same idea in a simpler way). 'What I mean is' (let me explain my real point). 'To put it differently' (a different way to say the same thing). 'That is to say' (to be more clear). 'In essence' (the basic idea). 'More precisely' (with greater accuracy). Each expression is a fixed chunk that signals to the listener: a clearer or simpler version is coming. Students who know these chunks can clarify their thinking smoothly. Students who do not often start over (saying 'I want to say...') or repeat the same words. This lesson uses simple language to teach the most useful clarifying expressions at B2 level.

Personal Reflection

Before you start — think honestly about your own teaching and experience.

Q1
When your students realise their first attempt at saying something was not clear, do they have fixed expressions to rephrase ('in other words', 'what I mean is') — or do they start over from scratch and lose flow?
Q2
Which of these have you seen your students get wrong or avoid using altogether?

Discover the Pattern

Look at the examples. Answer each question before reading the explanation — this is how your students will learn too.

1
A speaker says something complex, then clarifies:

The results show a strong correlation between the variables. In other words, when one goes up, the other usually goes up too.

The new policy aims to reduce inequality. What I mean is, it tries to make the gap between rich and poor smaller.

We need to consider the systemic implications. To put it differently, we need to think about how this affects everyone, not just one group.

The issue is multi-faceted. That is to say, there are several different sides to the problem.

Why does English have so many ways to say 'in simpler words'?

English has many clarifying expressions because clarification is needed in many different situations. After a complex statement (in other words, that is to say). After a technical phrase (more precisely, specifically). When the listener looks confused (what I mean is, let me explain). For summarising the basic idea (in essence, basically). Each expression has a slightly different feel — some formal (in essence, that is to say), some informal (what I mean is, basically). Students who know all of them can choose the right one for the context. Each one signals to the listener: a clearer version is coming. This is much smoother than starting over with 'I want to say...' or repeating the same words louder.

2
Different clarifying expressions for different needs:

For the same idea in simpler words:
in other words / to put it differently / put simply / put another way

For explaining what you really meant:
what I mean is / what I am trying to say is / let me explain

For more precise detail:
specifically / more precisely / to be more exact

For the basic core idea:
in essence / basically / fundamentally / at heart

For an example or specific case:
for instance / specifically / in particular / take... for example

Why do students need so many different clarifying chunks?

Each clarifying need requires a slightly different expression. To rephrase the same idea more simply — 'in other words' or 'put simply'. To explain what you really meant when the first version was confused — 'what I mean is' or 'let me explain'. To add precision to a vague statement — 'specifically' or 'more precisely'. To capture the core idea — 'in essence' or 'fundamentally'. To give a specific example — 'for instance' or 'in particular'. Mixing these up does not usually cause errors, but using the right one signals to the listener exactly what kind of clarification is coming. A speaker who says 'in essence' before a long detailed explanation creates expectations the explanation will not meet. Choosing the right expression matches the chunk to the actual purpose.

3
Note on register — formal vs informal:

FORMAL (academic writing, presentations):
in essence / fundamentally / that is to say / more precisely / specifically

NEUTRAL (works in many contexts):
in other words / to put it differently / put simply / for instance

INFORMAL (casual conversation):
basically / what I mean is / what I am trying to say is / let me put it this way

Which expressions fit which contexts?

Clarifying expressions vary by formality. 'In essence' and 'that is to say' fit formal academic writing and presentations. 'In other words' and 'put simply' work in many contexts — neither too formal nor too casual. 'Basically' and 'what I mean is' are casual — fine in conversation but out of place in formal essays. Students should match the expression to the context. A casual chat with friends takes 'basically' and 'what I mean is'. An academic essay takes 'in essence' or 'in other words'. A presentation might use 'specifically' for precision. Mixing register signals lack of awareness — using 'basically' in a formal essay sounds careless; using 'in essence' in casual chat sounds stiff. Teaching the register helps students choose appropriately.

The Pattern — What You Just Discovered

English has many fixed expressions for rephrasing or clarifying what has just been said. 'In other words' and 'put simply' rephrase the same idea more simply. 'What I mean is' and 'let me explain' clarify what was really meant. 'Specifically' and 'more precisely' add detail. 'In essence' and 'basically' capture the core idea. 'For instance' and 'in particular' give specific examples. Each fits a different purpose and a different register — formal (in essence, that is to say), neutral (in other words), informal (basically, what I mean is). Choosing the right expression matches both the purpose and the context.
Expression Function Register Example
in other words Rephrase the same idea more simply Neutral The data shows a clear pattern. In other words, the result was not random.
what I mean is Clarify what you really meant Informal to neutral This new policy is unusual. What I mean is, it has not been tried in this country before.
to put it differently Same idea, different words Neutral to formal The proposal needs more thought. To put it differently, we should not rush this decision.
that is to say Formal explanation that follows Formal The committee is divided. That is to say, members hold different views on the proposal.
in essence The basic core idea Formal The argument is complex, but in essence, it claims that small actions lead to big changes.
basically The basic idea (informal) Informal Basically, what we need is more time.
specifically With more precision Formal to neutral The team has improved. Specifically, the win rate is up by 30 percent.
more precisely With greater accuracy Formal The shop opens at nine. More precisely, it opens at five past nine.
for instance Giving an example Neutral Many countries face this challenge. For instance, Brazil and India have similar issues.
in particular Highlighting one specific case Neutral to formal All students need support. In particular, those from poor backgrounds need extra help.
let me explain Introduce a fuller explanation Neutral This may sound strange. Let me explain why I think this approach will work.
Usage Notes

NOTE 1 — Match function to expression: Different clarifying needs require different expressions. Rephrasing simpler → in other words / put simply. Explaining what you meant → what I mean is / let me explain. Adding precision → specifically / more precisely. Capturing the core → in essence / basically. Giving an example → for instance / in particular. Choose based on what kind of clarification is needed.

NOTE 2 — Register matters: Some clarifying expressions are formal (in essence, that is to say, more precisely). Others are casual (basically, what I mean is). Match the expression to the context. Academic essay: in essence, in other words. Presentation: specifically, for instance. Casual chat: basically, what I mean is.

NOTE 3 — These are fixed chunks: Most clarifying expressions cannot be changed. 'In other words' (not 'with other words'). 'In essence' (not 'in the essence'). 'That is to say' (all four words, fixed order). Students must learn the exact wording.

NOTE 4 — Punctuation: Most clarifying expressions are followed by a comma. 'In other words, the result was clear.' 'Specifically, three problems emerged.' 'For instance, Brazil and India face this issue.' The comma signals that what follows is the clarification.

NOTE 5 — Avoid stacking too many: Using two clarifying expressions together usually sounds wrong. 'In other words, basically, what I mean is...' has too many. Choose one expression and let it do its work. Stacking signals confusion or trying too hard.

Note

Clarifying expressions are essential for advanced academic and professional communication. Students who master them can rephrase complex ideas, add precision, give examples, and explain themselves smoothly. Students who lack them struggle when their first attempt is unclear — they may start over awkwardly or repeat themselves. The expressions in this lesson are particularly useful for academic writing, presentations, debates, and any formal context where clarity matters. Pairs well with hedging language (#25), discourse markers (#30), and opinion expressions (#40). Together these four lessons give students a complete toolkit for advanced communication.

💡

Practise clarifying through real exercises. A student says something complex — the partner asks 'what do you mean?' and the speaker uses a clarifying expression to rephrase. Then swap roles. The exercise builds the habit of having clarifying chunks ready. Over time, students reach for them automatically when they sense the listener is confused.

Common Student Errors

My academic essay states: Basically, the climate is changing rapidly due to human activity.
My academic essay states: In essence, the climate is changing rapidly due to human activity. / The climate is changing rapidly due to human activity.
Why'Basically' is informal — wrong for an academic essay. Formal writing uses 'in essence' or 'fundamentally', or simply states the idea without a clarifying word. Save 'basically' for casual contexts.
With other words, the company needs to make better decisions.
In other words, the company needs to make better decisions.
WhyThe fixed expression is 'IN other words' (with 'in', not 'with'). 'With other words' is a translation error from some languages. Always 'in other words' — the preposition is part of the fixed chunk.
In other words, basically, what I mean is, the policy needs more thought.
In other words, the policy needs more thought. / What I mean is, the policy needs more thought.
WhyStacking three clarifying expressions ('in other words, basically, what I mean is') is wrong and sounds confused. Choose ONE expression. The over-stacking signals that the speaker is uncertain how to clarify — opposite of clarity.
That is to say that the problem is widespread.
That is to say, the problem is widespread.
Why'That is to say' is followed by a comma and the clarification — not by 'that' again. 'That is to say that' has redundant 'that'. The clean form is 'That is to say, [clarification]'.
For instance and in particular, the rural schools have very few teachers.
For instance, the rural schools have very few teachers. / In particular, the rural schools have very few teachers.
Why'For instance' and 'in particular' are similar in function — both introduce a specific example. Using both together is redundant and wrong. Choose one. They are not stacked together.

Check Your Understanding — Part 1

Choose the best clarifying expression for each context. Think about the function (rephrase, explain, give example) and the register (formal or informal).

A formal academic essay just stated a complex theory. Now the writer wants to rephrase it more simply for readers.
Pick the most appropriate word:
A presenter has just made a vague statement and wants to add precise detail to explain what she meant.
Pick the most appropriate word:
In casual conversation, a friend has not understood your point. You want to clarify what you really meant in informal way.
Pick the most appropriate word:
A research report wants to give a specific case to support a general claim about education.
Pick the most appropriate word:
In a formal academic essay, the writer has just made a complex argument and wants to summarise the basic core idea.
Pick the most appropriate word:
0 / 5 answered

Check Your Understanding — Part 2: Why Is It Wrong?

Each sentence has a problem with a clarifying expression — wrong choice, wrong wording, or wrong register. Suggest a better version and explain.

My academic essay states: Basically, the new policy will improve education.
Write the correct sentence:
Explain why it is wrong:
My academic essay states: In essence, the new policy will improve education. / The new policy will improve education.
'Basically' is informal — wrong for an academic essay. Formal writing uses 'in essence' or simply states the idea without a clarifying word. Save 'basically' for casual contexts. Match the register of the expression to the register of the writing.
With other words, the project needs more funding to succeed.
Write the correct sentence:
Explain why it is wrong:
In other words, the project needs more funding to succeed.
The fixed expression is 'IN other words' (with 'in', not 'with'). 'With other words' is a common translation error. Always 'in other words' — the preposition is part of the fixed chunk and cannot be changed.
The argument is multi-layered. In other words, basically, what I mean is, there are many sides to consider.
Write the correct sentence:
Explain why it is wrong:
The argument is multi-layered. In other words, there are many sides to consider. / The argument is multi-layered. What I mean is, there are many sides to consider.
Stacking three clarifying expressions ('in other words, basically, what I mean is') sounds confused and is wrong. Choose ONE expression. The over-stacking signals uncertainty — opposite of the clarity you are trying to achieve.
That is to say that the issue requires immediate attention.
Write the correct sentence:
Explain why it is wrong:
That is to say, the issue requires immediate attention.
'That is to say' is followed by a comma and the clarification — not by 'that' again. The redundant 'that' creates an awkward sentence. The clean form is 'That is to say, [clarification]' (with comma, no second 'that').

Classroom Teaching Sequence

Use this sequence directly in class — guided discovery, no textbook needed. Tap each step to mark it done.

0 / 5 done
1

STEP 1 — Why we clarify (5 min): Show that complex statements often need rephrasing. Write a complex sentence on the board: 'The research suggests a positive correlation between two variables.' Ask students to rephrase it. Show that 'in other words, when one goes up, the other usually goes up too' is the natural rephrasing. Establish: clarifying is part of clear communication.

2

STEP 2 — Five functions (8 min): Drill the five main clarifying functions. REPHRASE simpler → in other words, put simply. EXPLAIN what you meant → what I mean is, let me explain. ADD precision → specifically, more precisely. CAPTURE the core → in essence, basically. GIVE an example → for instance, in particular. Practise each.

3

STEP 3 — Register (7 min): Show that some expressions are formal (in essence, that is to say, more precisely), some neutral (in other words, for instance), some informal (basically, what I mean is). Drill matching register to context. Academic essay → in essence. Casual chat → basically. Presentation → specifically.

4

STEP 4 — Punctuation (5 min): Show that most clarifying expressions take a comma after. 'In other words, the answer is clear.' 'Specifically, three problems emerged.' Drill the punctuation pattern. Without the comma, the expression looks unfinished.

5

STEP 5 — Practise clarifying (5 min): In pairs, one student says something complex (a statement about school, a community issue, a current event). The partner pretends not to understand. The first student clarifies using one of the lesson's expressions. Swap roles. The exercise builds the habit of using clarifying chunks.

Ready-to-Use Classroom Materials

Use directly in class — copy, adapt, or read aloud. No printing needed.

1 Clarifying expressions wall (display)
Create a wall display with five sections by function: REPHRASE / EXPLAIN / ADD PRECISION / CAPTURE CORE / GIVE EXAMPLE. Under each, list the most useful expressions with their register. Refer to the wall whenever students need to clarify. Match expression to function and register.
Example sentences
REPHRASE simpler: in other words (neutral), put simply (neutral), to put it differently (neutral)
EXPLAIN: what I mean is (informal), let me explain (neutral), what I am trying to say (informal)
ADD PRECISION: specifically (formal/neutral), more precisely (formal), to be more exact (formal)
CAPTURE CORE: in essence (formal), basically (informal), fundamentally (formal)
GIVE EXAMPLE: for instance (neutral), in particular (neutral), specifically (formal)
2 Clarify the complex statement (oral)
Read out a complex or vague statement. Students must clarify it using one of the lesson's expressions. Drill until automatic. The exercise builds the habit of having clarifying chunks ready.
Example sentences
Teacher: 'The implications are multi-dimensional.' → Student: 'In other words, there are many different effects.' / 'What I mean is, this affects many things.'
Teacher: 'There is a positive correlation.' → Student: 'In other words, when one goes up, the other does too.'
3 Pair clarification practice (speaking)
In pairs, students take turns making a complex statement and clarifying it. The first student says something academic or technical. The second pretends not to understand. The first uses a clarifying expression to rephrase. Then they swap. The exercise builds active use.
Example sentences
Student A: 'Students from disadvantaged backgrounds face systemic barriers.' Student B: 'What do you mean?' Student A: 'In other words, students from poor families often have problems that are not their fault — like not having books or quiet places to study.' (Then swap roles.)

Plan Your Next Steps

For each strategy, choose the option that best describes where you are now.

Connect to discourse markers (#30) and opinion expressions (#40). Together these three lessons cover the main tools for advanced communication — connecting ideas, stating opinions, and clarifying meaning.
Teach the related skill of summarising. After clarifying, speakers often need to summarise — 'in summary', 'to sum up', 'in conclusion'. The summary expressions complement the clarifying ones.
Look at how clarifying expressions appear in academic articles and newspapers. Real-world examples show students how often these chunks appear in serious writing.
Practise the comma punctuation in writing. Without the comma after the clarifying expression, the sentence looks unfinished. Drilling the punctuation in writing exercises catches errors.
Ask students to take a complex paragraph from their own writing and add one or two clarifying expressions to make it clearer. The editing exercise builds the habit of using these chunks.
What is the one change you will make next time you teach this vocabulary?

Key Takeaways

1 English has many fixed expressions for clarifying what has just been said. The five main functions: rephrase simpler (in other words), explain what you meant (what I mean is), add precision (specifically, more precisely), capture the core (in essence, basically), give an example (for instance, in particular).
2 Each expression has a register. Formal: in essence, that is to say, more precisely. Neutral: in other words, for instance, in particular. Informal: basically, what I mean is. Match the expression to the context — academic essay vs casual chat.
3 Most clarifying expressions take a comma after them. 'In other words, the answer is clear.' Without the comma, the expression looks unfinished.
4 These are fixed chunks. 'IN other words' (not 'with other words'). 'In essence' (not 'in the essence'). The exact wording must be used.
5 Stacking many clarifying expressions together ('in other words, basically, what I mean is') sounds confused. Choose ONE expression for each clarification. Students who use one well sound clearer than students who pile them up.