waxEnglishOxford English Thesauruswax verb 1 the moon is waxing: approach full moon, get bigger, increase in size, enlarge. ▷antonyms wane. 2 literary price sensitivity is waxing and brand loyalty waning: increase, grow, develop, rise, expand, swell, enlarge, magnify, extend, escalate, deepen, intensify, widen, broaden, spread, mushroom, snowball. ▷antonyms decrease, wane. 3 Jimmy seldom waxed enthusiastic about anything: become, grow, get, come to be, turn. □ wax lyricalhe waxed lyrical about how he would spend his earnings: become enthusiastic, enthuse, rave, gush, get carried away.wax (2) Oxford Dictionary of English