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Synonyms

strengthen

American  
[strengk-thuhn, streng-, stren-] / ˈstrɛŋk θən, ˈstrɛŋ-, ˈstrɛn- /

verb (used with object)

  1. to make stronger; give strength to.

    Synonyms:
    support, fortify, reinforce, buttress
  2. Phonetics. to change (a speech sound) to an articulation requiring more effort, as from fricative to stop or nongeminate to geminate.


verb (used without object)

  1. to gain strength; grow stronger.

strengthen British  
/ ˈstrɛŋθən /

verb

  1. to make or become stronger

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • overstrengthen verb
  • prestrengthen verb (used with object)
  • restrengthen verb
  • strengthener noun
  • strengtheningly adverb
  • unstrengthened adjective
  • unstrengthening adjective

Etymology

Origin of strengthen

First recorded in 1250–1300, strengthen is from the Middle English word strengthnen. See strength, -en 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The race is on to build AI whose alignment strengthens as it becomes more capable, and that race has already begun.

From The Wall Street Journal

Their competitive position has been further strengthened since 2022 by Russia's closure of its airspace to Western and Japanese carriers, while Gulf and Turkish airlines continue to overfly and serve the country.

From Barron's

The U.S. dollar was strengthening as investors turned to the currency as a haven asset in the face of the Iran conflict.

From Barron's

However, strengthening social safety nets and boosting incomes, as well as addressing the long-running property crisis, would lead to "a more durable revival", she said.

From Barron's

For years, analysts have said officials need to do more to strengthen job-market prospects and the social safety net, and address the property slump to revive confidence and get households spending again.

From The Wall Street Journal