tension vs enmity

tension and enmity both are nouns.

Word	Noun	Adjective	Verb	Adverb
tension	Yes	No	No	No
enmity	Yes	No	No	No

As nouns, enmity is a hypernym of tension; that is, enmity is a word with a broader meaning than tension:

Other hypernyms of tension include antagonism, hostility.

tension (noun)	enmity (noun)
the action of stretching something tight	the feeling of a hostile person
(physics) a stress that produces an elongation of an elastic physical body	a state of deep-seated ill-will
feelings of hostility that are not manifest
the physical condition of being stretched or strained
a balance between and interplay of opposing elements or tendencies (especially in art or literature)
(psychology) a state of mental or emotional strain or suspense