link vs tie

link and tie both are nouns.

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

As nouns, link and tie are synonyms defined as:

Other synonyms of link include linkup, tie-in.

As verbs, link and tie are synonyms defined as:

Other synonyms of link include connect, link up.

As verbs, tie is a hyponym of link; that is, tie is a word with a more specific, narrower meaning than link:

link (noun)	tie (noun)
a fastener that serves to join or connect	a cord (or string or ribbon or wire etc.) with which something is tied
a two-way radio communication system (usually microwave); part of a more extensive telecommunication network	neckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front
an interconnecting circuit between two or more locations for the purpose of transmitting and receiving data	a horizontal beam used to prevent two other structural members from spreading apart or separating
a channel for communication between groups	one of the cross braces that support the rails on a railway track
(computing) an instruction that connects one part of a program or an element on a list to another program or list	a fastener that serves to join or connect
a unit of length equal to 1/100 of a chain	(music) a slur over two notes of the same pitch; indicates that the note is to be sustained for their combined time value
the means of connection between things linked in series	the finish of a contest in which the score is tied and the winner is undecided
a connecting shape	equality of score in a contest
the state of being connected	a social or business relationship

link (verb)	tie (verb)
make a logical or causal connection	form a knot or bow in
connect, fasten, or put together two or more pieces	limit or restrict to
link with or as with a yoke	finish a game with an equal number of points, goals, etc.
be or become joined or united or linked	fasten or secure with a rope, string, or cord
	connect, fasten, or put together two or more pieces
	unite musical notes by a tie
	make by tying pieces together
	perform a marriage ceremony
	create social or emotional ties