Word Type

Verb

The word "strengthen" can be used as a verb.

Word Relationships

Opposites (Antonyms)

atrophy weaken weaken

Derived Terms

strengthen up strengthener strengthening plaster

Derived From

strength

Broader Terms (Hypernyms)

alter change exercise modify work out

Narrower Terms (Hyponyms)

beef up enforce instrengthen make for prop up restrengthen shore up temper tone up

Manner Of

change

Related Terms

augment

Related Terms

animate augment encourage fortify hearten improve intensify moral reinforce strength strong

Synonym Network

fortify tone

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.