contact vs link

contact and link both are nouns.

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

As nouns, contact and link are synonyms defined as:

Other synonyms of contact include inter-group communication, liaison.

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

contact: the state or condition of touching or of being in immediate proximity
link: the state of being connected

Other hypernyms of contact include connectedness, connection.

contact (noun)	link (noun)
the act of touching physically	a fastener that serves to join or connect
close interaction	a two-way radio communication system (usually microwave); part of a more extensive telecommunication network
(electronics) a junction where things (as two electrical conductors) touch or are in physical contact	an interconnecting circuit between two or more locations for the purpose of transmitting and receiving data
a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication	a channel for communication between groups
a channel for communication between groups	(computing) an instruction that connects one part of a program or an element on a list to another program or list
a communicative interaction	a unit of length equal to 1/100 of a chain
the physical coming together of two or more things	the means of connection between things linked in series
a person who is in a position to give you special assistance	a connecting shape
the state or condition of touching or of being in immediate proximity	the state of being connected

contact (verb)	link (verb)
be in or establish communication with	make a logical or causal connection
be in direct physical contact with; make contact	connect, fasten, or put together two or more pieces
	link with or as with a yoke
	be or become joined or united or linked