HATCH n.
An opening into, or in search of, a mine. Booby hatch, Buttery hatch, Companion hatch, etc. See under Booby, Buttery, etc. -- To batten down the hatches (Naut.), to lay tarpaulins over them, and secure them with battens. -- To be under hatches, to be confined below in a vessel; to be under arrest, or in slavery, dist…