Synonyms and related words :
adduce, affirm, anatomize, atomize, attest, authenticate, back, back up, bear out, bolster, buttress, certify, cite, confirm, corroborate, descend to particulars, detail, document, enter into detail, fortify, give full particulars, instance, itemize, particularize, probate, prove, ratify, reinforce, specify, spell out, strengthen, substantiate, support, sustain, undergird, uphold, validate, verify, warrant