vaunt

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To speak boastfully of; brag about.
2. v. To speak boastfully; brag. See Synonyms at boast¹.
3. n. A boastful remark.
4. n. Speech of extravagant self-praise.

Century Dictionary and Cyclopedia

1. To make a vain display of one's own worth, attainments, or powers; talk with vain ostentation: boast; brag.
2. To glory; exult; triumph.
3. To magnify or glorify with vanity; boast of; brag of.
4. To display or put forward boastfully; exhibit vaingloriously.
5. n. A vain display of what one is, or has, or has done; ostentation from vanity; a boast; a brag.
6. n. The first part; the beginning.

Wiktionary

1. v. intransitive To speak boastfully.
2. v. transitive To speak boastfully about.
3. n. A boast; an instance of vaunting.

GNU Webster's 1913

1. v. To boast; to make a vain display of one's own worth, attainments, decorations, or the like; to talk ostentatiously; to brag.
2. v. To boast of; to make a vain display of; to display with ostentation. In the latter sense, the term usually used is flaunt.
3. n. A vain display of what one is, or has, or has done; ostentation from vanity; a boast; a brag.
4. n. obsolete The first part.
5. v. obsolete To put forward; to display.

WordNet 3.0

1. v. show off
2. n. extravagant self-praise