green bean
US /ˌɡriːn ˈbiːn/
UK /ˌɡriːn ˈbiːn/

1.
an unripe, stringless bean pod, eaten as a vegetable
:
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She steamed the fresh green beans for dinner.
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I love adding green beans to my stir-fries.
an unripe, stringless bean pod, eaten as a vegetable