from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A decorative pin worn on a necktie.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An ornamented pin used to secure a necktie's end flat against the shirt, a tie tack.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a decorative pin that is worn in a necktie
From stick + pin. (Wiktionary)