INTERPENETRATE Scrabble 16 Words With Friends 19 Definition verb penetrate mutually or be interlocked. — synonyms: permeate verb spread or diffuse through. — synonyms: permeate, pervade, penetrate, diffuse, imbue, riddle See all 447 words you can make from INTERPENETRATE → 14-letter words Words starting with I Words ending with E ← Unscramble different letters