safari vs hunting expedition

safari and hunting expedition both are nouns.

Word	Noun	Adjective	Verb	Adverb
safari	Yes	No	No	No
hunting expedition	Yes	No	No	No

As nouns, safari and hunting expedition are synonyms defined as:

safari and hunting expedition: an overland journey by hunters (especially in Africa)

Other synonyms of safari include campaign.

safari (noun)	hunting expedition (noun)
an overland journey by hunters (especially in Africa)	an overland journey by hunters (especially in Africa)