Meaning of “opener” in the English Dictionary

"opener" in American English

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openernoun [ C ]

us /ˈoʊ·pə·nər/

opener noun [ C ] (POSITIONER FOR ACCESS)

a device for opening closed containers:

a bottle/can opener

opener noun [ C ] (BEGINNING)

infml the first in a series of competitions or items:

The team played their season opener a couple of nights ago.

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