harden
verb(hard-en)
to make hard or harder
harden
verb(hard-en)
to confirm in disposition, feelings, or action; especially : to make callous
harden
verb(hard-en)
inure, toughen
harden
biographical name(hard-en)
Sir Arthur 1865—1940 English chemist
harden
biographical name(hard-en)
Maximilian 1861—1927 originally Felix Ernst Witkowski German writer
harden
idiom(hard-en)
to stop having kind or friendly feelings for someone or caring about something
harden
verb(hard-en)
to harden (a ferrous alloy) so that the surface layer is harder than the interior
harden
verb(hard-en)
to make callous or insensible