Exercise 1
Choose the correct word to complete each sentence about communication and persuasion.
Example: The politician used a series of compelling _______ to win over the undecided voters. (arguments / discussions / speeches / remarks)
Answer: The politician used a series of compelling arguments to win over the undecided voters.
Communication and Persuasion Vocabulary
Whether you are crafting a compelling argument in a boardroom, navigating a delicate negotiation, or simply trying to win a friend over to your point of view, the ability to communicate persuasively is one of the most valuable skills in any language. At C1 level, it is not enough simply to say things — you need to know how to say them, with the right tone, the right register, and the right vocabulary to make your message land effectively.
Consider this scenario: Maya, a senior communications manager, is preparing her team for a high-stakes product launch. She needs to brief stakeholders, counter objections from sceptical board members, and inspire her team — all in the same afternoon. The vocabulary in this lesson will give you the tools to do exactly what Maya does: articulate ideas precisely, persuade confidently, and communicate with nuance and authority.
Key Vocabulary & Meaning Breakdown
1. Persuasion and Influence
| Word / Phrase | Part of Speech & Meaning | Example Sentence | Collocations / Notes |
|---|---|---|---|
| rhetoric | noun — the art of effective or persuasive speaking and writing; sometimes implies empty or exaggerated language | The politician's speech was full of powerful rhetoric, though critics argued it lacked substance. | empty rhetoric; political rhetoric; heated rhetoric; the rhetoric of persuasion |
| compelling | adjective — evoking strong interest or conviction; powerfully persuasive | She made a compelling case for restructuring the department's budget. | a compelling argument / case / reason / narrative; highly compelling |
| sway | verb — to cause someone to change their opinion or decision; to influence | The jury was clearly swayed by the defence lawyer's emotional appeal. | sway opinion; sway a vote; be swayed by; hard to sway; easily swayed |
| leverage | noun / verb — power or advantage used to influence someone; to use something strategically to achieve a goal | She used her reputation as leverage to negotiate a better deal. They leveraged social media to reach a wider audience. |
use as leverage; gain leverage; financial leverage; leverage one's position |
| coerce | verb — to persuade someone using threats or force; to compel against their will | The workers claimed they had been coerced into signing the new contracts. | coerce someone into (doing) something; coerce through threats; Note: more forceful and negative than "persuade" |
| cajole | verb — to persuade someone by using flattery or gentle but persistent pressure | He managed to cajole his reluctant colleague into presenting at the conference. | cajole someone into (doing) something; cajole and flatter; Note: suggests manipulation but not force |
| ingratiate | verb (reflexive) — to make oneself popular or well-regarded by flattering someone, often in an insincere way | He tried to ingratiate himself with the new director by praising her every decision. | ingratiate oneself with someone; Note: almost always has a negative or ironic connotation |
| advocate | verb / noun — to publicly support or recommend a policy or cause; a person who does this | The charity advocates for stricter regulations on food labelling. She is a passionate advocate for women's rights in the workplace. |
advocate for / advocate that; a strong advocate; advocate change; advocate a position |
2. Argumentation and Debate
| Word / Phrase | Part of Speech & Meaning | Example Sentence | Collocations / Notes |
|---|---|---|---|
| rebut | verb — to argue or prove that a claim or accusation is false; to counter an argument with evidence | The scientist was quick to rebut the claims made in the rival study. | rebut an argument / claim / allegation; rebut forcefully; hard to rebut |
| substantiate | verb — to provide evidence to support or prove the truth of something | You cannot simply assert that — you need to substantiate your claims with data. | substantiate a claim / allegation / argument; fully substantiated; unsubstantiated claims |
| concede | verb — to admit that something is true or valid, often reluctantly; to give up a point in an argument | He conceded that the original proposal had significant flaws, but argued the core idea was sound. | concede a point; concede defeat; concede that; reluctantly concede |
| contend | verb — to assert or argue something firmly, especially in a debate or written argument | Several economists contend that the policy will widen the wealth gap rather than narrow it. | contend that; strongly contend; Note: more formal than "argue" or "claim" |
| counterargument | noun — a reason or set of reasons put forward in opposition to another argument | Before presenting her proposal, she anticipated every counterargument the board might raise. | raise a counterargument; address a counterargument; a compelling / weak counterargument |
| hedge | verb / noun — to use careful, non-committal language in order to avoid making a definite statement; a form of linguistic caution | Politicians often hedge their answers to avoid alienating any voter group. His report was full of hedges like "it could be argued" and "arguably". |
hedge one's bets; hedge an answer; linguistic hedging; Note: common in academic and diplomatic English |
| fallacy | noun — a mistaken belief or a flawed argument, especially one based on faulty reasoning | The notion that working longer hours always means higher productivity is a common fallacy. | a logical fallacy; a common / popular fallacy; commit a fallacy; expose a fallacy |
| caveat | noun — a warning or qualification attached to a statement, often to limit its scope | I support the plan, but with one important caveat: the timeline must be realistic. | with the caveat that; add a caveat; an important caveat; Note: common in professional and academic writing |
3. Communication Style and Register
| Word / Phrase | Part of Speech & Meaning | Example Sentence | Collocations / Notes |
|---|---|---|---|
| articulate | adjective / verb — (adj.) able to express ideas clearly and fluently; (verb) to express an idea or feeling clearly | She is an incredibly articulate speaker who can explain complex ideas in plain language. He struggled to articulate exactly what was bothering him. |
an articulate speaker; articulate a view / concern / idea; well-articulated; Note: both uses are common at C1 level |
| candid | adjective — truthful and straightforward, even if the truth is uncomfortable; frank without being hostile | I appreciate your candid feedback — I'd rather know the truth than receive empty praise. | a candid assessment / admission / conversation; candid about something; be candid with someone |
| evasive | adjective — tending to avoid giving direct answers; deliberately unclear or non-committal | The CEO became noticeably evasive when questioned about the company's financial losses. | evasive answers / language; deliberately evasive; evasive manoeuvre; Note: opposite register to "candid" |
| eloquent | adjective — fluent, persuasive, and beautifully expressed in speech or writing | His eloquent tribute to the retiring professor moved many in the audience to tears. | an eloquent speaker / speech / tribute; eloquently expressed; eloquence (noun) |
| nuanced | adjective — expressing subtle distinctions and fine shades of meaning; avoiding oversimplification | The documentary offered a nuanced portrayal of the conflict rather than a simple good-versus-evil narrative. | a nuanced argument / view / approach / understanding; highly nuanced; nuance (noun) |
| tactful | adjective — having or showing sensitivity in dealing with others; careful not to cause offence | You need to be tactful when delivering critical feedback — bluntness can do more harm than good. | a tactful response / approach; tactfully (adverb); tactfulness; Note: distinct from dishonest — tactful people tell the truth carefully |
| verbose | adjective — using more words than are needed; unnecessarily wordy or long-winded | The report was criticised for being overly verbose — it could have communicated the same points in half the pages. | verbose writing / style; overly verbose; verbosity (noun); Note: almost always negative in connotation |
| subtext | noun — an underlying theme or message in communication that is implied but not directly stated | The subtext of the manager's "suggestions" was clear: change your approach or face the consequences. | the subtext of something; read the subtext; an obvious / hidden subtext; Note: common in media analysis and interpersonal communication |
Collocations & Useful Expressions
make a compelling case (for something)
She made a compelling case for expanding the company's overseas operations, citing market data and competitor analysis.
carry weight / hold weight
His recommendations carry significant weight because of his track record in the industry.
win someone over
She was initially sceptical about the proposal, but the presentation won her over completely.
talk someone into / out of (doing) something
He talked his manager into extending the project deadline by presenting a detailed risk assessment.
Her colleagues tried to talk her out of resigning, but she had made up her mind.
put forward an argument / proposal / suggestion
The committee put forward several compelling arguments in favour of reforming the appeals process.
address the elephant in the room
Nobody wanted to address the elephant in the room: the budget simply wasn't sufficient to deliver what had been promised.
strike a chord (with someone)
The speaker's personal story struck a chord with many in the audience who had had similar experiences.
get one's point across
She simplified her explanation considerably to get her point across to a non-specialist audience.
speak volumes (about something)
The fact that no one challenged his proposal speaks volumes about the respect he commands in the organisation.
play devil's advocate
I'm not saying I disagree — I'm simply playing devil's advocate to make sure we've considered all the risks.
be at cross purposes
After twenty minutes of discussion, we realised we had been at cross purposes — we were talking about completely different projects.
read between the lines
If you read between the lines of her email, it's clear she's not happy with the way the project is being managed.
Important Differences & Confusing Words
Persuade vs. Convince
These two verbs are frequently confused, even by advanced speakers. The key distinction lies in what follows the verb grammatically and conceptually.
- persuade — focuses on motivating someone to do something; typically followed by an infinitive with to.
- convince — focuses on changing someone's belief or opinion; typically followed by that or used without an infinitive.
✅ She persuaded him to attend the meeting. (He took action.)
✅ She convinced him that the meeting was essential. (He changed his belief.)
⚠️ In informal usage, these verbs overlap considerably, but in formal writing the distinction is worth observing.
Assert vs. Contend vs. Claim
- assert — to state something confidently and directly, without necessarily offering proof. Often used in formal or assertive contexts.
- contend — to argue a point, typically within a debate or discussion, implying that others may disagree. More formal than "argue".
- claim — to say something is true, often when it is unproven or disputed. Can carry a degree of scepticism from the speaker.
✅ He asserted his authority over the team from the very first meeting.
✅ The researcher contends that current climate models are too conservative.
✅ The company claims its product reduces energy consumption by 40%, though no independent data supports this.
Candid vs. Blunt vs. Tactless
- candid — honest and direct, but with some consideration for the other person's feelings. A positive quality.
- blunt — very direct and plain-spoken, to the point of being abrupt. Can be either neutral or slightly negative depending on context.
- tactless — saying something honest in a way that is needlessly insensitive or offensive. Clearly negative.
✅ Her candid appraisal helped me understand exactly where I needed to improve.
✅ He is famously blunt — he'll tell you exactly what he thinks whether you ask or not.
✅ It was tactless of him to mention her failed project in front of the entire team.
Rhetoric vs. Eloquence
- rhetoric — persuasive language, which can be brilliant or empty depending on context. Often used critically to describe speech that sounds impressive but lacks substance.
- eloquence — the quality of being fluent, expressive, and moving in speech or writing. Almost always a compliment.
✅ Critics dismissed the minister's speech as mere rhetoric, arguing it offered no concrete policies.
✅ The barrister's closing statement was a masterpiece of eloquence — not a single word was wasted.
Common Mistakes
❌ She persuaded me that to apply for the job.
✅ She persuaded me to apply for the job. — After "persuade", use the infinitive with "to", not "that + infinitive".
❌ He made a very convincing rhetoric during the debate.
✅ He delivered a piece of compelling rhetoric during the debate. — "Rhetoric" is an uncountable noun in most contexts; it is not preceded by "a" without a modifier noun (e.g. "a piece of rhetoric", "a piece of political rhetoric").
❌ The report unsubstantiated her claims.
✅ The report failed to substantiate her claims. — "Unsubstantiated" is an adjective ("unsubstantiated claims"), not a verb. Use "substantiate" or "fail to substantiate" as the verb form.
❌ I want to advocate the importance of clear communication.
✅ I want to advocate for the importance of clear communication. — In modern usage, "advocate for" is the standard collocation when supporting a cause or idea. "Advocate" without a preposition is also possible but less natural in this context.
❌ She was very eloquent in rebutting his arguments, using many verbose language.
✅ She was very eloquent in rebutting his arguments, using precise and sophisticated language. — "Verbose" means unnecessarily wordy (a negative quality), so it cannot be used as a compliment. Also, "language" is uncountable here, so "many" is incorrect.
❌ He hedged his bets by giving a very candid answer to avoid committing himself.
✅ He hedged his bets by giving a carefully worded answer to avoid committing himself. — "Candid" means frank and direct, which is the opposite of hedging. These two concepts are contradictory.
❌ The lawyer was able to rebut the witness' testimony with a very strong counterargument, so the jury was coerced to change its verdict.
✅ The lawyer was able to rebut the witness' testimony with a very strong counterargument, which persuaded the jury to change its verdict. — "Coerce" implies force or threats. Juries are persuaded or swayed, not coerced, by legal arguments.
Communication and Persuasion Vocabulary: Quick Summary & Review
In this lesson, you have explored a rich set of vocabulary tools for the world of communication and persuasion, organised into three core areas:
- Persuasion and Influence: words like rhetoric, sway, cajole, coerce, leverage, and advocate that describe the range of ways people seek to change minds — from ethical advocacy to manipulative pressure.
- Argumentation and Debate: precision vocabulary including rebut, substantiate, concede, contend, fallacy, caveat, and hedge — essential tools for constructing rigorous, well-evidenced arguments.
- Communication Style and Register: evaluative terms such as articulate, candid, eloquent, nuanced, tactful, evasive, verbose, and subtext that allow you to analyse and describe how something is communicated, not just what is communicated.
Key distinctions to remember include the difference between persuade and convince, the subtle contrast between candid, blunt, and tactless, and the important difference in connotation between rhetoric and eloquence. Remember, too, that words like coerce, cajole, and ingratiate carry negative or ironic overtones that distinguish them sharply from neutral words like advocate or persuade.
At C1 level, it is not only about knowing these words — it is about deploying them with precision, choosing the right register, and understanding the nuance that separates a compelling argument from mere empty rhetoric.
Now practise Communication and Persuasion vocabulary in the exercises below.
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