The definition of a sortie is a mission by a military plane, or a raid made while being surrounded by an enemy.
(noun)See sortie in Webster's New World College Dictionary
noun
Origin: Fr < sortir, to issue, go out < VL *sortire, prob. < L sortitus, chosen, selected by lot, pp. of sortiri < sors: see sort
See sortie in American Heritage Dictionary 4
noun
Origin:
Origin: French
Origin: , from feminine past participle of sortir, to go out
Origin: , from Old French
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