/ Dictionary / Index F frame line: Meaning and Definition of Find definitions for: frame' line" Pronunciation: [key] — Motion Pictures. Motion Pictures. a horizontal line separating consecutive frames on a strip of film. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. frame house frame of reference Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language