steam vs live steam

steam and live steam both are nouns.

Word	Noun	Adjective	Verb	Adverb
steam	Yes	No	Yes	No
live steam	Yes	No	No	No

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

steam (noun)	live steam (noun)
water at boiling temperature diffused in the atmosphere	steam coming from a boiler at full pressure

steam (verb)	live steam (verb)
cook something by letting steam pass over it
clean by means of steaming
get very agitated or angry
rise as vapor
travel by means of steam power
emit steam