Boast Boast, v. t. 1. To display in ostentatious language; to speak of with pride, vanity, or exultation, with a view to self-commendation; to extol. [1913 Webster]

Lest bad men should boast Their specious deeds. --Milton. [1913 Webster]

2. To display vaingloriously. [1913 Webster]

3. To possess or have; as, to boast a name. [1913 Webster]

{To boast one's self}, to speak with unbecoming confidence in, and approval of, one's self; -- followed by of and the thing to which the boasting relates. [Archaic] [1913 Webster]

Boast not thyself of to-morrow. --Prov. xxvii. 1 [1913 Webster]

The Collaborative International Dictionary of English. 2000.