Foeman and Opponent

Foeman noun - An armed adversary (especially a member of an opposing military force).

Opponent and foeman are semantically related in enemy topic. In some cases you can use "Opponent" instead a noun "Foeman", when it comes to topics like foe.

Opponent noun - One that takes a position opposite another in a competition or conflict.

Foeman and opponent are semantically related in enemy topic. You can use "Foeman" instead a noun "Opponent", if it concerns topics such as foe.