rover vs wanderer

rover and wanderer both are nouns.

Word	Noun	Adjective	Verb	Adverb
rover	Yes	No	No	No
wanderer	Yes	No	No	No

As nouns, rover and wanderer are synonyms defined as:

Other synonyms of rover include bird of passage, roamer.

rover (noun)	wanderer (noun)
someone who leads a wandering unsettled life	a computer program that prowls the internet looking for publicly accessible resources that can be added to a database; the database can then be searched with a search engine
an adult member of the Boy Scouts movement	someone who leads a wandering unsettled life