The meaning of STRENGTHEN is to make stronger, more forceful, more effective, etc.. How to use strengthen in a sentence.

Define strengthen. strengthen synonyms, strengthen pronunciation, strengthen translation, English dictionary definition of strengthen. v. strength·ened , strength·en·ing , strength·ens v. …

STRENGTHEN definition: 1. to make something stronger or more effective, or to become stronger or more effective: 2. to…. Learn more.

Definition of strengthen verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

STRENGTHEN definition: to make stronger; give strength to. See examples of strengthen used in a sentence.

To make or become stronger.... Click for English pronunciations, examples sentences, video.

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Nov 24, 2025 · strengthen (third-person singular simple present strengthens, present participle strengthening, simple past and past participle strengthened) (transitive) To make strong or …

There are 13 meanings listed in OED's entry for the verb strengthen. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

strengthen definition: make something stronger or more powerful. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "strengthen …