strengthen

verb

strength·​en ˈstreŋ(k)-thən How to pronounce strengthen (audio)
ˈstren(t)-
strengthened; strengthening
ˈstreŋ(k)th-niŋ,
ˈstren(t)th-;
ˈstreŋ(k)-thə- How to pronounce strengthen (audio)
ˈstren(t)-

transitive verb

: to make stronger

intransitive verb

: to become stronger
strengthener
ˈstreŋ(k)th-nər
ˈstren(t)th-;
ˈstreŋ(k)-thə- How to pronounce strengthen (audio)
ˈstren(t)-
noun

Examples of strengthen in a Sentence

These exercises will strengthen your stomach muscles. He takes herbs to strengthen his immune system. The development of new electronic products has strengthened the company's position as the leader in digital technology. Holidays often serve to strengthen bonds between family members. Their financial situation strengthened her determination to find a new career. The team has been strengthened by the addition of several new players. The winds are expected to strengthen. The economy is slowly strengthening. The Canadian dollar is strengthening against the U.S. dollar. The trade restrictions will strengthen the pound.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Lastly, the acquisition strengthens the company’s balance sheet and should allow for significant share repurchases over time. Jeff Marks, CNBC, 21 Apr. 2025 And the reports are then published, so the broader firefighting community can strengthen its procedures to avoid similar losses. Mark Olalde, ProPublica, 21 Apr. 2025 Several bridges in western Poland have been strengthened in recent years to accommodate heavy military loads. Barry R. Posen, Foreign Affairs, 21 Apr. 2025 This experience strengthened my conviction in the impact of upskilling, talent development and strategic collaborations across industry, academia, nonprofits and government. Jay Garcia, Forbes.com, 21 Apr. 2025 See All Example Sentences for strengthen

Word History

First Known Use

15th century, in the meaning defined at transitive sense

Time Traveler
The first known use of strengthen was in the 15th century

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Cite this Entry

“Strengthen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/strengthen. Accessed 2 May. 2025.

Kids Definition

strengthen

verb
strength·​en ˈstreŋ(k)-thən How to pronounce strengthen (audio)
strengthened; strengthening ˈstreŋ(k)th-(ə-)niŋ How to pronounce strengthen (audio)
: to make or become stronger
strengthener noun

More from Merriam-Webster on strengthen

Last Updated: - Updated example sentences
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