electrical contact vs tangency

electrical contact and tangency both are nouns.

Word	Noun	Adjective	Verb	Adverb
electrical contact	Yes	No	No	No
tangency	Yes	No	No	No

As nouns, tangency is a hypernym of electrical contact; that is, tangency is a word with a broader meaning than electrical contact:

electrical contact: contact that allows current to pass from one conductor to another
tangency: (electronics) a junction where things (as two electrical conductors) touch or are in physical contact

Other hypernyms of electrical contact include contact.

electrical contact (noun)	tangency (noun)
contact that allows current to pass from one conductor to another	(electronics) a junction where things (as two electrical conductors) touch or are in physical contact
	the state of being tangent; having contact at a single point or along a line without crossing