#1 expedition n. [military expedition, hostile expedition] a military campaign designed to achieve a specific objective in a foreign country. wn
#2 expedition n. an organized group of people undertaking a journey for a particular purpose; "an expedition was sent to explore Mars". wn
#3 expedition n. a journey organized for a particular purpose. wn
#4 expedition n. [excursion, jaunt, outing, junket, pleasure trip, sashay] a journey taken for pleasure; "many summer excursions to the shore"; "it was merely a pleasure trip"; "after cautious sashays into the field". wn
#5 expedition n. [dispatch, despatch, expeditiousness] the property of being prompt and efficient; "it was done with dispatch". wn
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