exploration vs geographic expedition

exploration and geographic expedition both are nouns.

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

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

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

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