(chiefly historical) An electronic device incorporating electrons from a glowing cathode inside an evacuated glass tube, functioning as a switch, amplifier etc.

A four-stringed musical instrument with a small membrane-covered body like a banjo, with a neck fretted like a ukulele.

A village and civil parish in Fenland district, Cambridgeshire, England (OS grid ref TF4208).

A firm that has the ability to choose its desired selling point of their good or services, as they face a downward-sloping demand curve.