à la file indienne

== French == === Etymology === Refers to the manner Sioux warriors would walk in a single file line. === Pronunciation === IPA(key): /fi.l‿ɛ̃.djɛn/ === Noun === file indienne f (plural files indiennes) single file, Indian file en file indienne, à la file indienne ― in a single file line Mettez-vous en file indienne, les enfants. ― Line up single file, children.