kerosene vs coal oil

kerosene and coal oil both are nouns.

Word	Noun	Adjective	Verb	Adverb
kerosene	Yes	No	No	No
coal oil	Yes	No	No	No

As nouns, kerosene and coal oil are synonyms defined as:

kerosene and coal oil: a flammable hydrocarbon oil used as fuel in lamps and heaters

Other synonyms of kerosene include kerosine, lamp oil.

kerosene (noun)	coal oil (noun)
a flammable hydrocarbon oil used as fuel in lamps and heaters	a flammable hydrocarbon oil used as fuel in lamps and heaters