opponent has definitions from the fields of military,sport,games
1
[ noun ] someone who offers opposition

Used in print

(The Dallas Morning News,...)

Opponents generally argued that the ballot could n't give enough information about tax proposals for the voters to make an intelligent choice .

2
[ noun ] (sport,games) a contestant that you are matched against

Synonyms

opposite opposition

Used in print

("Editorials"...)

But to imitate an opponent when he has made the mistake of his life would be a new high in statesmanlike folly .

(John Cheever, "The Brigadier and the Golf Widow,"...)

Then he played nine imaginary holes of golf , choosing his handicap , his irons , his stance , his opponents , and his weather in_detail , but the green of the links seemed faded in the light of his business worries .

Related terms

contestant pit

3
[ noun ] (military) an armed adversary (especially a member of an opposing military force)

Examples

"a soldier must be prepared to kill his enemies"

Used in print

(R. F. Shaw, "The `Private Eye`"...)

Watson 's insight is verified by the mysterious link between Holmes and his arch opponent , Dr._Moriarty .

(Donald J. Plantz, Sweeney Squadron....)

If he spun out now , he would join his opponent on the ground .

4
[ adjective ] characterized by active hostility

Synonyms

opposing

Examples

"opponent (or opposing) armies"

Related terms

hostile

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