stoner vs lapidator

stoner and lapidator both are nouns.

Word	Noun	Adjective	Verb	Adverb
stoner	Yes	No	No	No
lapidator	Yes	No	No	No

As nouns, stoner and lapidator are synonyms defined as:

stoner and lapidator: an attacker who pelts the victim with stones (especially with intent to kill)

stoner (noun)	lapidator (noun)
an attacker who pelts the victim with stones (especially with intent to kill)	an attacker who pelts the victim with stones (especially with intent to kill)