/tʌˈfʌn/ - [tufun] - tough•en
We found 5 definitions of toughen from 4 different sources.
Verb |
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toughen - make tough or tougher; "This experience will toughen her" | ||
strengthen gain strength; "His body strengthened" | ||
season, harden make fit; "This trip will season even the hardiest traveller" |