n.
1.a tight-fitting headdress
2.a top (as for a bottle)
3.a mechanical or electrical explosive device or a small amount of explosive
4.something serving as a cover or protection
5.a fruiting structure resembling an umbrella that forms the top of a stalked fleshy fungus such as a mushroom
6.an upper limit on what is allowed
7.dental appliance consisting of an artificial crown for a tooth
8.the upper part of a column that supports the entablature cap v.
1.lie at the top of
2.restrict the number or amount of