Synonyms for Illustrate:

n.

caricature, etch, rough out, picture, evidence, Redraw, explain, elucidate, illuminate, delineate, shade. lay out, run-through, put across. profile, define, pin down, set out, substitute, symbol, stand for, typify, epitomize, symbolize, describe, set forth. clarify, clear. illustrate (noun)
exemplify, instance.

v.

communication (verb)
exemplify, instance.
demonstrate (verb)
expose, show, convince, flourish, uncover, display, unmask, unveil, flaunt, present.
demonstrate, exemplify (verb)
epitomize, instance, manifest, portray, picture, depict, explain, typify, lay out, clarify, expose, imitate, evidence, clear, represent, illuminate, delineate, evince, elucidate, show, symbolize, exhibit.
draw (verb)
draw, doodle, sketch, trace, paint.
evince (verb)
connote, confirm, certify, attest, exhibit, testify, indicate, establish, validate, declare, prove, vouch, document, betoken, exemplify, manifest, determine, corroborate, demonstrate, adduce, substantiate, authenticate, observe, evince, state, avouch, support, witness, depose.
explain by drawing, decorating (verb)
paint, sketch.
interpret (verb)
explain.
represent (verb)
duplicate, outline, portray, represent, simulate, silhouette, depict, ape, model, photograph, render, replicate, cast, copy, imitate, approximate.

Other synonyms:

set out, set forth, put across, delineate, etch, Redraw. define, typify, run-through, shade. clarify, caricature, illuminate, lay out, epitomize. picture, pin down. profile. affirm
adduce.
delineate
describe.
evidence
evidence.
explain
elucidate.
imitate
copy.
indicate
pin down.
name
instance.
typify
epitomize.
Other relevant words:
describe, lay out, delineate, caricature, explain, illuminate, evidence, symbol, stand for, instance, epitomize, etch, set forth, symbolize, substitute, typify, shade, clear, Redraw, profile, elucidate, define, clarify, picture.

Usage examples for illustrate

  1. Further to illustrate this position: we do not see with our outward eye any more than we do with spectacles. – Essays Æsthetical by George Calvert
  2. They serve well enough to answer a question and illustrate a principle and that is all they were intended for. – Heart and Soul by Victor Mapes (AKA Maveric Post)