a particular form of expression; a word, phrase, expression, or idiom, especially as used by a particular person, group, etc.
2.
a style of speech or verbal expression; phraseology.
Origin: 1400–50;late Middle English < Latinlocūtiōn- (stem of locūtiō) speech, style of speech, equivalent to locūt(us) (past participle of loquī to speak) + -iōn--ion