Cohesion & Flow

Lexical Cohesion

Create flow with repetition, synonyms, and consistent terminology.

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What & why

What it is
The use of deliberate word choice to tie a speech together: repeating key terms, using consistent labels for the same concept, and drawing on synonyms or related word families (develop, development, developer) to link ideas. Rather than varying vocabulary for its own sake, it keeps the audience tracking one continuous thread. Consistent terminology reinforces central themes and signals importance through repetition, while controlled variation connects related points without forcing listeners to reconcile shifting labels.
Why it works

Listeners build a running model of your topic, and consistent wording tells them new sentences belong to the same thread. When you keep calling something a "customer," repetition reinforces the idea and signals importance, while related word families and deliberate synonyms link concepts without sounding monotonous. Switching terms unpredictably forces people to check whether "user" and "client" mean the same thing, which adds cognitive load and dilutes focus. Steady terminology lowers that effort, strengthens recall of key themes, and makes a talk feel coherent.

Before & after

Before

“We talk about customers, then users, then clients with no reason.”

After

“We consistently say customers, or we define the terms once and stick to them.”

When you’ll use it

Technical presentations: Pick 'user' vs 'customer' vs 'client' and stick with it, or define differences once and use consistently

Strategy discussions: Repeat key themes like 'efficiency,' 'automation,' and 'scalability' to reinforce focus areas

Progress reports: Use word families like 'develop/development/developer' or 'optimize/optimization/optimal' to link related concepts

Pro tip

Repeat key terms or use clear synonyms to tie ideas together.

Questions & answers

What is lexical cohesion in business presentations?

Lexical cohesion uses related words, synonyms, and repeated key terms to create connections throughout presentations. It includes strategic repetition of important concepts and using word families to reinforce themes and maintain focus.

How does lexical cohesion improve presentation effectiveness?

Lexical cohesion reinforces key messages, creates thematic unity, helps audiences follow complex arguments, improves retention through repetition, and demonstrates consistent focus on important concepts throughout presentations.

What techniques create strong lexical cohesion?

Use strategic repetition of key terms, synonyms and related words, word families around central themes, consistent terminology throughout, and deliberate word choices that reinforce your main messages and create thematic connections.

Learn more

Academic English Online - Cohesion and Coherence (Queen Mary University of London)
Key Terms in Multimodality: Cohesion (Centre for Multimodal Communication, University of Southern Denmark)
Wikipedia - Cohesion (linguistics)

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