This is the 1332nd most frequent Polish word.
operację
"Operację" is the accusative singular form of the Polish noun "operacja," meaning "operation" (e.g., surgical procedure or organized activity).
Semantic meaning involving medical procedure.
Lekarz przeprowadził operację na pacjencie.
The doctor performed surgery on the patient.
Semantic meaning involving a coordinated activity or mission.
Planowaliśmy operację ratunkową w górach.
We planned a rescue operation in the mountains.
Semantic meaning involving mathematical or logical function.