/ Dictionary / Index T top timber: Meaning and Definition of Find definitions for: top' tim"ber Pronunciation: [key] — Naut. Naut. a timber forming the upper, straighter portion of a frame in a wooden hull. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. top ten top yeast Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language