COMPLETION /kəmˈpliːʃən/ Scrabble 16 Words With Friends 21 Definition noun (American football) a successful forward pass in football. — synonyms: pass_completion noun a concluding action. — synonyms: culmination, closing, windup, mop_up See all 355 words you can make from COMPLETION → 10-letter words Words starting with C Words ending with N ← Unscramble different letters