Pronunciation: (gilt'ejd"), [key]
1. having the edge or edges gilded: gilt-edged paper.
2. of the highest or best quality, kind, etc.
a. (of securities and bonds) of the highest rating or quality; secure.
b. (of bonds) government backed or guaranteed. Also,gilt'-edge".
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.