lash vs sway

lash and sway both are nouns.

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

As verbs, sway is a hypernym of lash; that is, sway is a word with a broader meaning than lash:

Other hypernyms of lash include swing.

lash (noun)	sway (noun)
a quick blow delivered with a whip or whiplike object	pitching dangerously to one side
leather strip that forms the flexible part of a whip	controlling influence
any of the short curved hairs that grow from the edges of the eyelids

lash (verb)	sway (verb)
strike as if by whipping	move back and forth or sideways
beat severely with a whip or rod	move or walk in a swinging or swaying manner
bind with a rope, chain, or cord	cause to move back and forth
lash or flick about sharply	win approval or support for