To declare, reveal, make known, or set forth the character or identity of (a person or thing). Obsolete.

To reveal, disclose, or discover the true character of; to show or expose the existence or presence of (something desired to be concealed); to…

To demonstrate or prove (absurdity, error, vanity, etc.) to be such; to expose (in its real character). Obsolete (= convict, v. 6b.)

figurative. To expose the character or nature of (a person or thing).

transitive. To divest of an assumed character, to unmask. Obsolete.

To detect and expose (an error, etc.). Obsolete.

transitive. To reveal or expose (someone or something) as having made false claims or pretensions, or (more generally) as being deceitful…

transitive. In extended use: to disclose private, often controversial or damaging information about (a person, institution, etc.); to expose, to…