geographic expedition vs exploration

geographic expedition and exploration both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographic expedition	Yes	No	No	No
exploration	Yes	No	No	No

As nouns, geographic expedition and exploration are synonyms defined as:

geographic expedition and exploration: to travel for the purpose of discovery

geographic expedition (noun)	exploration (noun)
to travel for the purpose of discovery	a careful systematic search
	to travel for the purpose of discovery
	a systematic consideration