American Dictionary

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Definition weaken in American English

weaken verb

verb
/ˈwikən/
1

to make someone physically less strong and healthy, or to become less strong and healthy

Example

Stress can weaken the immune system.

Example

She began to weaken after running for 8 miles.

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1.1

to make a structure more likely to break, or to become more likely to break

Example

Many buildings had already been weakened by last year's storms.

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2

to make someone or something less powerful or important, or to become less powerful or important

Example

A peace deal between Israel and Lebanon would have weakened Syria's influence in the region.

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3

to make someone less determined or less certain

Example

If your facts are wrong, that's going to weaken your case.

Example

No amount of violence will weaken our resolve.

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3.1

if someone weakens about an opinion or a decision, they become less certain about it

Example

In the end I weakened and agreed to go.

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4

if prices weaken, they fall

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Definition weaken in American English