junction vs contact

junction and contact both are nouns.

Word	Noun	Adjective	Verb	Adverb
junction	Yes	No	No	No
contact	Yes	No	Yes	No

As nouns, contact is a hyponym of junction; that is, contact is a word with a more specific, narrower meaning than junction:

junction: something that joins or connects
contact: (electronics) a junction where things (as two electrical conductors) touch or are in physical contact

Other hyponyms of junction include tangency, joint, barrier strip, junction barrier, splice, splicing, thermojunction.

junction (noun)	contact (noun)
an act of joining or adjoining things	the act of touching physically
the place where two or more things come together	close interaction
something that joins or connects	(electronics) a junction where things (as two electrical conductors) touch or are in physical contact
the shape or manner in which things come together and a connection is made	a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication
the state of being joined together	a channel for communication between groups
	a communicative interaction
	the physical coming together of two or more things
	a person who is in a position to give you special assistance
	the state or condition of touching or of being in immediate proximity

junction (verb)	contact (verb)
	be in or establish communication with
	be in direct physical contact with; make contact