/ Dictionary / Index E eighty-seventh: Meaning and Definition of Find definitions for: eight•y-sev•enth Pronunciation: (ā'tē sev'unth), [key] — adj. next after the eighty-sixth; being the ordinal number for 87. being one of 87 equal parts. —n. an eighty-seventh part, esp. of one (). the eighty-seventh member of a series. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. eighty-seven eighty-six Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language