burner vs torch

burner and torch both are nouns.

Word	Noun	Adjective	Verb	Adverb
burner	Yes	No	No	No
torch	Yes	No	Yes	No

As nouns, torch is a hyponym of burner; that is, torch is a word with a more specific, narrower meaning than burner:

Other hyponyms of burner include blowlamp, blowtorch, gas bracket, gas burner, gas jet.

burner (noun)	torch (noun)
an apparatus for burning fuel (or refuse)	a small portable battery-powered electric lamp
the heating elements of a stove or range on which pots and pans are placed for cooking	a burner that mixes air and gas to produce a very hot flame
	a light usually carried in the hand; consists of some flammable substance
	tall-stalked very woolly mullein with densely packed yellow flowers; ancient Greeks and Romans dipped the stalks in tallow for funeral torches

burner (verb)	torch (verb)
	burn maliciously, as by arson