THESAURUS
substantiate
adduce, affirm, anatomize, assay, atomize, attest, authenticate, back, back up, bear out, body, bolster, bring to test, buttress, certify, circumstantiate, cite, confirm, corporealize, corporify, corroborate, cut and try, demonstrate, descend to particulars, detail, document, embody, enter into detail, essay, experiment, exteriorize, externalize, fortify, give a try, give a tryout, give full particulars, have a go, incarnate, incorporate, instance, itemize, justify, manifest, materialize, objectify, particularize, personalize, personify, play around with, practice upon, probate, prove, put to trial, ratify, reembody, reincarnate, reinforce, research, road-test, run a sample, sample, shake down, specify, spell out, strengthen, substantialize, substantify, support, sustain, taste, test, transmigrate, try, try it on, try out, undergird, uphold, validate, verify, warrant
ROGET THESAURUS
substantiate
Dueness
VB
be due, to, be the due, of, have right to, have title to, have claim to, be entitled to, have a claim upon, belong to, deserve, merit, be worthy of, richly deserve, demand, claim, call upon for, come upon for, appeal to for, revendicate, reclaim, exact, insist on, insist upon, challenge, take one's stand, make a point of, require, lay claim to, assert, assume, arrogate, make good,
substantiate, vindicate a claim, vindicate a right, fit for, qualify for, make out a case, give a right, confer a right, entitle, authorize, sanctify, legalize, ordain, prescribe, allot, give every one his due, pay one's dues, have one's due, have one's rights, use a right, assert, enforce, put in force, lay under contribution.
Evidence
VB
be evidence, evince, show, betoken, tell of, indicate, imply, involve, argue, bespeak, breathe, have weight, carry weight, tell, speak volumes, speak for itself, rest upon, depend upon, repose on, bear witness, give evidence, testify, depose, witness, vouch for, sign, seal, undersign, set one's hand and seal, sign and seal, deliver as one's act and deed, certify, attest, acknowledge, make absolute, confirm, prove (demonstrate), indorse, countersign, corroborate, support, ratify, bear out, uphold, warrant, adduce, attest, cite, quote, refer to, appeal to, call, call to witness, bring forward, bring into court, allege, plead, produce witnesses, confront witnesses, place into evidence, mark into evidence, collect evidence, bring together evidence, rake up evidence, experiment, have a case, make out a case, establish, authenticate,
substantiate, verify, make good, quote chapter and verse, bring home to, bring to book.
Demonstration
VB
demonstrate, prove, establish, make good, show, evince, manifest, confirm, corroborate,
substantiate, verify, settle the question, reduce to demonstration, set the question at rest, make out, make out a case, prove one's point, have the best of the argument, draw a conclusion, follow, follow of course, follow as a matter of course, follow necessarily, stand to reason, hold good, hold water, convince, persuade (belief).
Truth
VB
be true, be the case, sand the test, have the true ring, hold good, hold true, hold water, render true, prove true,
substantiate, get at the truth.