Definition of "expedition" []

• A journey undertaken by a group of people with a definite objective: an expedition against the enemy stronghold; a scientific expedition to the South Pole. (noun)
• The group undertaking such a journey. (noun)
• Speed in performance; promptness. See Synonyms at haste. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Lewis by Michael Pritchett: Like Lewis and Clark's epic trek more than 200 years ago, Michael Pritchett's novel about their expedition is an arduous journey."
• "From their names the expedition is usually known as the Lewis and Clark Expedition."
• "The fact that the expedition is to be a joint one causes some regrets of another kind at home."