1. (v. t.) To appeal to; to cite or claim as authority.

2. (v. t.) To maintain a just or true; to vouch for.

3. (v. t.) To declare or assert positively and as matter of fact; to affirm openly.

4. (v. t.) To acknowledge deliberately; to admit; to confess; to sanction.

5. (n.) Evidence; declaration.

acknowledge admit affirm allege announce annunciate argue assert assever asseverate assure attest aver avow bear witness certify confess confirm contend corroborate countersign declare depone depose disclose enunciate express express the belief give evidence guarantee have hold insist issue a manifesto lay down maintain make a promise manifesto own pledge plight predicate proclaim profess promise pronounce protest put put it say set down speak speak out speak up stand for stand on state submit swear testify troth underwrite vouch vow warrant witness