/ Dictionary / Index A Assateague Island: Meaning and Definition of Find definitions for: As'sa•teague Is'land Pronunciation: (as'u-tēg"), [key] a narrow island in SE Maryland and E Virginia on Chincoteague Bay: annual wild pony roundup. 33 mi. (53 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. assassin bug assault Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language