/ Dictionary / Index G gyro repeater: Meaning and Definition of Find definitions for: gy'ro repeat'er Pronunciation: ( jī'rō), [key] a navigational compass, under the control of a gyroscope, that automatically indicates true north. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gyroplane gyroscope Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language