cap

• patrol flight at high or medium altitude in order to identify enemy aircraft
hat; cover, cork; maximum limit or quota; summit, peak; symbol used to denote an intersection (mathematics); top part of a mushroom; noisemaker made of paper containing a bit of gunpowder; (dentistry) crown
put a cap on; put a top on; crown; do better than
a cap is a flat hat, usually with a peak at the front. caps are often worn as part of a uniform.
when a sports person represents their country in a team game such as football, rugby, or cricket, you can say that they have been awarded a cap.
when a sports person is capped, he or she is chosen to represent their country in a team game such as football, rugby, or cricket.
you can refer to someone who is representing their country in a team game such as football, rugby, or cricket for the first time as a new cap.
the cap of a bottle is its lid.
if a local authority is capped by the government, the government limits the amount that the authority is allowed to spend.
a cap is also a contraceptive device placed inside a woman's vagina.
caps are very small explosives used in toy guns.
if you cap an action, you do something that is better immediately afterwards.