- heighten⇄heighten, transitive verb.
1. to make higher; elevate.
Ex. The builder heightened the doorway to accommodate the tall owner.
2. (Figurative.) to make stronger or greater; increase.
Ex. The clowns and the band heightened the childr - heighten⇄noun heightener.
- heighten⇄v.i. 1. to become higher; increase in height; rise.
Ex. Day by day the structure heightened.
2. (Figurative.) to become stronger or greater; increase.
Ex. Their industry always heightened at the boss's approach.