rescuer vs recoverer

rescuer and recoverer both are nouns.

Word	Noun	Adjective	Verb	Adverb
rescuer	Yes	No	No	No
recoverer	Yes	No	No	No

As nouns, rescuer and recoverer are synonyms defined as:

rescuer and recoverer: someone who saves something from danger or violence

Other synonyms of rescuer include saver.

rescuer (noun)	recoverer (noun)
someone who saves something from danger or violence	someone who saves something from danger or violence
a person who rescues you from harm or danger