noun
Etymology: file (VI)
: a commissioned or noncommissioned officer in the rear of a line or on the flank of a column who rectifies mistakes and ensures steadiness in the ranks
noun
Etymology: file (VI)
: a commissioned or noncommissioned officer in the rear of a line or on the flank of a column who rectifies mistakes and ensures steadiness in the ranks
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012