Choose the perfect synonym or antonym for the word

Rival

/ˈrʌɪv(ə)l/

A person or entity competing with another for the same objective or for superiority in the same field

Synonyms:

How industriously his rivals would advertise this fact!

The rival Pope meanwhile was trying to argue with Pope Adrian.

"Twenty-one," added her rival, hardly raising his voice at all.

Derived from the Latin word rivālis, meaning one using the same stream as another, the term evolved to refer to competitors or adversaries.

13 mentions per 1 million words

Moderate

Hint: Frequency according to COCA