Dictionary
use•ful
Pronunciation: (yOOs'ful), [key]—
adj.
1. being of use or service; serving some purpose; advantageous, helpful, or of good effect:
a useful member of society.
2. of practical use, as for doing work; producing material results; supplying common needs:
the useful arts; useful work. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.