tie vs lash

tie and lash both are nouns.

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

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

Other hyponyms of tie include gag, muzzle, retie, bind off, tie up, loop, cord, lash together, truss, leash, rope, strap, knot, band, lace, lace up.

tie (noun)	lash (noun)
a cord (or string or ribbon or wire etc.) with which something is tied	a quick blow delivered with a whip or whiplike object
neckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front	leather strip that forms the flexible part of a whip
a horizontal beam used to prevent two other structural members from spreading apart or separating	any of the short curved hairs that grow from the edges of the eyelids
one of the cross braces that support the rails on a railway track
a fastener that serves to join or connect
(music) a slur over two notes of the same pitch; indicates that the note is to be sustained for their combined time value
the finish of a contest in which the score is tied and the winner is undecided
equality of score in a contest
a social or business relationship

tie (verb)	lash (verb)
form a knot or bow in	strike as if by whipping
limit or restrict to	beat severely with a whip or rod
finish a game with an equal number of points, goals, etc.	bind with a rope, chain, or cord
fasten or secure with a rope, string, or cord	lash or flick about sharply
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