n. pl. en·e·mies
a. One who feels hatred toward, intends injury to, or opposes another; a foe.
b. One who opposes or is hostile to an idea or cause: an enemy of democracy.
c. Something destructive or injurious in its effects: "Art hath an enemy called Ignorance" (Ben Jonson).
a. A hostile power or force, such as a nation.
b. A member or unit of such a force.
3. A group of foes or hostile forces. See Usage Note at collective noun.
Of, relating to, or being a hostile power or force.
[Middle English enemi, from Old French, from Latin inimīcus : in-, not; see IN-1 + amīcus, friend.]
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