scavenge vs salvage

scavenge is not a noun while salvage is a noun.

Word	Noun	Adjective	Verb	Adverb
scavenge	No	No	Yes	No
salvage	Yes	No	Yes	No

As verbs, scavenge and salvage are synonyms defined as:

scavenge (noun)	salvage (noun)
	the act of rescuing a ship or its crew or its cargo from a shipwreck or a fire
	the act of saving goods or property that were in danger of damage or destruction
	property or goods saved from damage or destruction

scavenge (verb)	salvage (verb)
remove unwanted substances from	collect discarded material
feed on carrion or refuse	save from ruin, destruction, or harm
clean refuse from
collect discarded material