1.  substantiate(v = verb.cognition) affirm, confirm, corroborate, support, sustain - establish or strengthen as with new evidence or facts; "his story confirmed my doubts"; "The evidence supports the defendant"
Derived forms noun substantiation₂, noun substantiation₁, adjective substantiative₁
Sample sentences: Somebody ----s something; Something ----s something; Somebody ----s that CLAUSE

2.  substantiate(v = verb.stative) body forth, embody, incarnate - represent in bodily form; "He embodies all that is evil wrong with the system"; "The painting substantiates the feelings of the artist"
is one way to be
Sample sentences: Somebody ----s something; Something ----s something

3.  substantiate(v = verb.creation) actualise, actualize, realise, realize - make real or concrete; give reality or substance to; "our ideas must be substantiated into actions"
is one way to create, make
Sample sentences: Somebody ----s something

4.  substantiate(v = verb.change) Array - solidify, firm, or strengthen; "The president's trip will substantiate good relations with the former enemy country"
is one way to beef up, fortify, strengthen
Sample sentences: Somebody ----s something; Something ----s something

1.  To make to exist; to make real. Ayliffe. [1913 Webster]

2.  To establish the existence or truth of by proof or competent evidence; to verify; as, to substantiate a charge or allegation; to substantiate a declaration. [1913 Webster]
"Observation is, in turn, wanted to direct and substantiate the course of experiment." [1913 Webster]

substantiate, v.tr. prove the truth of (a charge, statement, claim, etc.); give good grounds for.

Derivative:
substantiation n.

Etymology:
med.L substantiare give substance to (as SUBSTANCE)

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.

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.

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).

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.