illustrate
Word family
- illustrationnounB2
- illustratornounB2
- illustrativeadjectiveC1
- illustratedadjectiveB2
Synonym discussion
Sense: verb/2
These four verbs all relate to making something understood, but they differ in method and scope. 'Illustrate' specifically means using examples, stories, or visual aids to make an idea clear — it emphasises the tool (the example) more than the outcome. 'Demonstrate' implies proving something by action or practical evidence: a mechanic demonstrates how an engine works by taking it apart. 'Clarify' focuses on the end result of removing confusion — you clarify a misunderstanding, not through examples but by stating things more simply. 'Explain' is the broadest and most neutral term: any method of making something understood counts as explaining. 'Show' is the most informal and general, covering both deliberate demonstration and simple evidence ('the data shows…'). In academic writing, 'illustrate' pairs naturally with concrete examples ('to illustrate this point'), while 'demonstrate' is used for proof and evidence ('the experiment demonstrates…').
Common collocations
Etymology
From Latin 'illustrare' meaning 'to light up, illuminate'. The word entered English in the 1500s with the literal meaning 'to shed light on', then developed the figurative sense of 'making clear, explaining' in the 1600s. By the 1700s it had also taken on the specific meaning of 'decorating with pictures', reflecting the idea that visuals 'light up' the text.