Bedeutung von “operation” im Essential American English Dictionary

operation

noun us /ˌɑp·əˈreɪ·ʃən/

B1 the process of cutting someone’s body to remove or repair part of it:

a heart operation
My son is going to have an operation.

an organization or business:

a large commercial operation

(Definition von “operation” aus dem Webster's Essential Mini Dictionary © Cambridge University Press)