Simple Definition of weaken
: to make (something or someone) weaker, less forceful, less effective, etc.
: to become weaker, less forceful, less effective, etc.
of money : to decrease in value when compared to money from other countries
Examples of weaken in a sentence
The disease weakens the immune system.
Some are concerned that the increase in taxes will weaken the economy.
The beams had been weakened by water damage.
efforts to weaken environmental laws
The recent setbacks have not weakened our resolve.
These kinds of contradictions weaken your argument.
The disease causes the immune system to weaken.
The dollar has continued to weaken against the euro.
Lower interest rates have weakened the dollar.
First Known Use of weaken
Synonym Discussion of weaken
WEAKEN Defined for Kids
Definition of weaken for Students
: to make or become weak or weaker <… he didn't want to weaken his message by varying it one bit. — E. L. Konigsburg, Mrs. Basil E. Frankweiler>
Seen and Heard
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