Table of Contents POS
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
THESAURUS

WORDNET DICTIONARY

Verb toughen has 1 sense

• toughen(v = verb.change) Array - make tough or tougher; "This experience will toughen her"
is one way to strengthen
Sample sentences:
Somebody ----s something
Something ----s somebody
Something ----s something

CIDE DICTIONARY

THESAURUS

toughen

acclimate, acclimatize, anneal, be tough, beef up, brace, brace up, buttress, calcify, callous, case harden, confirm, cornify, develop, endure, firm, fortify, fossilize, gird, hang tough, harden, indurate, invigorate, lapidify, lithify, nerve, ossify, petrify, prop, refresh, reinforce, reinvigorate, restrengthen, season, shore up, steel, stiffen, strengthen, support, sustain, temper, undergird, vitrify

For further exploring for "toughen" in Webster Dictionary Online