It was thought that he was being warned by a rival gang.
Nemesis is a word for arch rival.
We play our arch-rival next week!
An arch rival or enemy might be your nemesis.
Opponent
Rival
The word 'rival' is a noun, an adjective or a verb.The noun 'rival' is a word for a person or thing competing with another for the same objective; a competitorEXAMPLESAs a noun: Ours is a stadium without a rival.As an adjective: They are our rival businesses.As a verb: The Thames can rival any European river in beauty.
Rival can be a verb, yes.For example: "he will always rival her".Other verbs are rivals, rivalling and rivalled.
Rival.
sagas
Competition , Rival....?
The word adversary is a noun. An adversary is a rival.
rival