catch fire vs conflagrate

catch fire and conflagrate both are verbs.

Word	Noun	Adjective	Verb	Adverb
catch fire	No	No	Yes	No
conflagrate	No	No	Yes	No

As verbs, catch fire and conflagrate are synonyms defined as:

Other synonyms of catch fire include combust, erupt, ignite, take fire.

catch fire (verb)	conflagrate (verb)
start to burn or burst into flames	start to burn or burst into flames
	cause to start burning