harden   (Sound)

The verb harden has 5 senses

• harden, indurate -- (become hard or harder; "The wax hardened")


• harden, indurate -- (make hard or harder; "The cold hardened the butter")


• temper, harden -- (harden by reheating and cooling in oil; "temper steel")


• season, harden -- (make fit; "This trip will season even the hardiest traveller")


• inure, harden, indurate -- (cause to accept or become hardened to; habituate; "He was inured to the cold")