Meaning of “widen” in the English Dictionary

"widen" in British English

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widenverb [ I or T ]

uk /ˈwaɪ.dən/ us /ˈwaɪ.dən/

widen verb [ I or T ] (DISTANCE)

B2 to become, or to make something greater in width:

As it approaches the sea, the river begins to widen (out).

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(Definition of “widen” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"widen" in American English

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widenverb [ I/T ]

us /ˈwɑɪ·dən/

to become farther in distance from one side to the other:

[ I ] After it passes through town, the road widens.

to allow or encourage influence by something else:

[ T ] Let’s widen the discussion by listening to people with other points of view.

(Definition of “widen” from the Cambridge Academic Content Dictionary © Cambridge University Press)