INVAGINATION Scrabble 16 Words With Friends 21 Definition noun the condition of being folded inward or sheathed. — synonyms: introversion noun the folding in of an outer layer so as to form a pocket in the surface. — synonyms: introversion, intussusception, infolding See all 130 words you can make from INVAGINATION → 12-letter words Words starting with I Words ending with N ← Unscramble different letters