lapidator vs stoner

lapidator and stoner both are nouns.

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

As nouns, lapidator and stoner are synonyms defined as:

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

lapidator (noun)	stoner (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)