(heraldry) A map of the Low Countries drawn in the shape of a lion and sometimes used as a heraldic device.

(aviation, of an aircraft) To enter, or remain in, a spin (abnormal stalled flight mode). / (aviation, of a pilot) To cause one's aircraft to enter or remain in a spin (abnormal stalled flight mode).

(informal) A minisubmarine.

Having a long nose (used in the names of fish and other animals).