What is another word for strengthen?

Need synonyms for strengthen? Here's a list of similar words from our thesaurus that you can use instead.

Verb
To make physically stronger or tougher
“Similar to thermal aging, dynamic strain hardening will strengthen the material at the expense of the material's ductility but at a quicker rate.”
Verb
To consolidate or reinforce, especially an opinion or feeling
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“The latest incident would strengthen his belief that everyone in the other group was a bad person.”
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To give strength to on a physiological level
“Exercise has been shown to strengthen growing bones and the muscles that support them.”
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To reinforce, especially by addition or augmentation
“Subsequent dynasties continued to strengthen the wall, but this was not enough to prevent the Mongols from invading China.”
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To instill with (mental or emotional) energy
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“The experience would strengthen his determination to help bring reform to a fractured healthcare system.”
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To gain, or cause to gain, in intensity or severity
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“The state-of-the-art weather predictor suggested that the wind would strengthen in the early hours of the night.”
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To scale up
“The organization would strengthen its efforts to expand its reach.”
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To strengthen or toughen a material by heat treatment
“When you start to strengthen the glass, make sure that the inner temperature is low.”
Verb
To promote or nurture the development of
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To bring or move to an improved or superior rank or level
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To give or add flavor to by seasoning
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To make safe or protect against threats
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To cause to give a higher tone or sound
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To emphasize, stress, or indicate the importance of
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To prepare an army or place for battle
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To recover or feel better
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To fix or repair something
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(of people, nations or organizations) To come or bring together for a common purpose or action
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To maintain or defend, as a cause or a claim, by words or measures
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To increase the strength and diminish the bulk of, as of a liquid or an ore
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To prevent entry or passage with a physical barrier
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To place, lay or set firmly in surrounding matter
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