/ Dictionary / Index P post oak: Meaning and Definition of Find definitions for: post' oak" Pronunciation: [key] any of several American oaks, esp. Quercus stellata, the wood of which is used for posts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. postnuptial post-obit Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language