/ Dictionary / Index A appentice: Meaning and Definition of Find definitions for: ap•pen•tice Pronunciation: (u-pen'tis, a-pen'-), [key] — n. penthouse (def. 4). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. appendix Appenzell Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language