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strengthen Synonyms
Another word for strengthen
Choosing another word for strengthen depends on context, so the 20 synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
• verb (Context 1)
To make or become physically stronger, sturdier, or more resilient.
Usage Example
"Regular resistance training helps to fortify both muscles and bones."
Strongest
fortify
reinforce
Strong
invigorate
toughen
brace
harden
temper
• verb (Context 2)
To make or become more effective, secure, or authoritative (of an argument, relationship, institution, or position).
Usage Example
"The new trade agreement is expected to bolster diplomatic ties between the two nations."
Strongest
bolster
consolidate
buttress
Strong
cement
shore up
substantiate
enhance
• verb (Context 3)
To grow in force, intensity, or value (especially of wind, a currency, or an emotion).
Usage Example
"The dollar continued to intensify against other major currencies throughout the quarter."
Strongest
intensify
Strong
pick up
deepen
heighten
appreciate
escalate
Opposites of strengthen
The opposite of strengthen shifts depending on context. Common opposites include:
weaken
undermine
abate
subside
debilitate
wane
erode
enfeeble
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Strengthen. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/strengthen