Constrains vs Challenges - What's the difference?

As verbs the difference between constrains and challenges

is that constrains is (constrain) while challenges is .

(head)

(constrain)

(en verb)

To force physically, by strong persuasion or pressurizing; to compel; to oblige.

To keep within close bounds; to confine.

To reduce a result in response to limited resources.

* (l)

* English control verbs

(head)

(head)

(challenge)

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