Argue is defined as to verbally disagree with someone.
To assert is defined as to make a statement with full confidence of its truth and factuality.
To declare openly or admit frankly
To assert or maintain:
To state openly a choice, opinion, etc. (for or against)
To defend or hold against criticism or attack:
To state as a determination of fact:
Find another word for avouch. In this page you can discover 16 synonyms, antonyms, idiomatic expressions, and related words for avouch, like: argue, affirm, allege, assert, asseverate, aver, avow, claim, contend, declare and hold.