/ Dictionary / Index F form stop: Meaning and Definition of Find definitions for: form' stop" Pronunciation: [key] (in poured-concrete construction) a board placed across a form to retain concrete until it sets. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Formosus formula Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language