verb
strengthen
STREHNG-thuhn
verb
1
To make something stronger, more solid, or more effective.
"Regular exercise strengthens the heart."
"The new evidence strengthened their case in court."
How to Use Strengthen
Learner’s notesIn plain EnglishTo make something (or someone) stronger, more solid, or more convincing.
Common pairings
strengthen ties
strengthen a muscle
strengthen an argument
Word Forms
strengthened past tense, strengthens singular
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Regular exercise _____ the heart.
Etymology
From Middle English, formed by adding the verb ending "-en" to "strength."