spit vs skewer

spit and skewer both are nouns.

Word	Noun	Adjective	Verb	Adverb
spit	Yes	No	Yes	No
skewer	Yes	No	Yes	No

As nouns, skewer is a hypernym of spit; that is, skewer is a word with a broader meaning than spit:

As verbs, spit and skewer are synonyms defined as:

spit (noun)	skewer (noun)
the act of spitting (forcefully expelling saliva)	a long pin for holding meat in position while it is being roasted
a skewer for holding meat over a fire
a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches
a narrow strip of land that juts out into the sea

spit (verb)	skewer (verb)
expel or eject (saliva or phlegm or sputum) from the mouth	drive a skewer through
utter with anger or contempt
drive a skewer through
rain gently