Main Entry: en·e·my

Pronunciation: \ˈe-nə-mē\

Function: noun

Inflected Form(s): plural en·e·mies

Etymology: Middle English enemi, from Anglo-French, from Latin inimicus, from in- ¹in- + amicus friend — more at amiable

Date: 13th century

1 : one that is antagonistic to another; especially : one seeking to injure, overthrow, or confound an opponent
2 : something harmful or deadly <alcohol was his greatest enemy>
3 a : a military adversary b : a hostile unit or force