say it: ek-spuh-DISH-uh-ner-ee
expeditionary is an adjective meaning "(used of military forces) designed for military operations abroad". It carries one recorded sense.
(used of military forces) designed for military operations abroad
“the French expeditionary force in Indochina”
military
Definitions, synonyms and semantic relations for expeditionary come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.