WordWeb Online

1. (military) a military campaign designed to achieve a specific objective in a foreign country
   - military expedition, hostile expedition
    
2. An organized group of people undertaking a journey for a particular purpose
   "an expedition was sent to explore Mars"
    
3. A journey organized for a particular purpose
    
4. A journey taken for pleasure
   "many summer expeditions to the shore";
   - excursion, jaunt, outing, junket, pleasure trip, sashay [N. Amer]
    
5. The property of being prompt and efficient
   "it was done with expedition";
   - dispatch, despatch [Brit], expeditiousness

Derived forms: expeditions

Type of: campaign, celerity [archaic], journey, journeying, military campaign, quickness, rapidity, rapidness, speediness, working group, working party [Brit]

Encyclopedia: Expedition