/ Dictionary / Index T Truk Islands: Meaning and Definition of Find definitions for: Truk' Is'lands Pronunciation: (truk, trook), [key] a group of the Caroline Islands, in the N Pacific: part of the Federated States of Micronesia; an important Japanese naval base in World War II. 35,220; 50 sq. mi. (130 sq. km). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Trujillo Alto T-rule 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