1. (v. t.) To assert, or prove, the truth of; to allege as fact\.

2. (n.) A work horse, or working ox.

3. (v. t.) To avouch or verify; to offer to verify; to prove or justify. See Averment.

4. (v. t.) To affirm with confidence; to declare in a positive manner, as in confidence of asserting the truth.

acknowledge affirm allege announce annunciate argue assert assever asseverate attest avouch avow bear witness certify contend declare defend depone depose disclose enunciate express give evidence have hold insist issue a manifesto justify lay down maintain manifesto nuncupate predicate proclaim profess pronounce protest put put it quote recite relate say set down speak speak out speak up stand for stand on state submit swear testify vouch warrant witness