/ Dictionary / Index R rudderfish: Meaning and Definition of Find definitions for: rud•der•fish Pronunciation: (rud'ur-fish"), [key] — pl. -fish, -fish•es. any of various fishes having the habit of following behind ships, as a pilot fish. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rudderfish (Thesaurus) rudder rudderhead Related Content Daily Word Quiz: persevere Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language