1The lid of a pot. In later use also specifically: a decorated ceramic lid as a collector's item.
A roughly circular flake of flint, typically produced by fracture as the flint cools after heating.
A stone so played as to come to rest on the tee at the centre of the target area; (now also) the innermost circle of the target area.
4In full "pot-lid valve". A valve having the form of a cap fitting over a hole or the end of a pipe, etc.
Late Middle English. From pot + lid.