Definition of substantiate:
keep, objectify, understand, incorporate, buttress, make, affirm, realize, justify, epitomize, patronage, bolster, sanction, make/prove your/a point, abide, indorse, endorse, stand, realise, settle, bear, incarnate, bear out, plunk for, patronise, underpin, swan, be, nourish, clear, reinforce, ratify, strengthen, defend, digest, keep up, bring in, materialize, personalize, body forth, support, externalize, maintain, take in, assert, plump for, prolong, have, back up, recognize, stick out, warrant, sustain, fix, tolerate, get, evidence, keep going, exteriorize, instantiate, brook, personify, recognise, suffer, confirm, hold up, earn, gain, true, reassert, actualize, hold, see, pull in, embody, corroborate, put up, aver, agnise, agnize, complete, body, argue, back, shore, stomach, nurture, patronize, subscribe, uphold, avow, point to, substitute, vindicate, show, vouch for, actualise, fend for, swear, express, endure.
- ascertain (part of speech: verb)
- evince (part of speech: verb)
- "Monsieur Violet", Frederick Marryat.
- "Black Man's Burden", Dallas McCord Reynolds.
- "Men in the Making", Ambrose Shepherd.