heightener|ˈhaɪt(ə)nə(r)| [f. as prec. + -er1.] One who or that which heightens or intensifies. a1656Bp. Hall Rem. Wks. (1660) 121 This disappointment is a just heightner of his griefe.1863Mrs. C. Clarke Shaks.Char. iii. 65 A heightener of his dramatic and poetical effects.