(military, chiefly in the plural) A building for soldiers, especially within a garrison; originally referred to temporary huts, now usually to a permanent structure or set of buildings.
(chiefly in the plural) primitive structure resembling a long shed or barn for (usually temporary) housing or other purposes
(chiefly in the plural) any very plain, monotonous, or ugly large building
(US, regional) A movableroof sliding on four posts, to cover hay, straw, etc.