GESTATION /dʒesˈteɪʃən/ Scrabble 10 Words With Friends 12 Definition noun the period during which an embryo develops (about 266 days in humans). — synonyms: gestation_period noun the state of being pregnant. — synonyms: pregnancy, maternity noun the conception and development of an idea or plan. See all 366 words you can make from GESTATION → 9-letter words Words starting with G Words ending with N ← Unscramble different letters