cap

US /kæp/
UK /kæp/
"cap" picture
1.

a soft flat hat, typically with a visor

:
He wore a baseball cap to the game.
She pulled her woolly cap down over her ears.
2.

a lid or cover for a container

:
Put the cap back on the bottle.
The pen has a protective cap.
3.

an upper limit on an amount or output

:
There's a spending cap of $500 per person.
The government imposed a cap on energy prices.
1.

put a lid or cover on

:
Please cap the marker when you're done.
He carefully capped the lens to protect it.
2.

put an upper limit on (an amount, especially of money)

:
The government plans to cap tuition fees.
They decided to cap the number of participants at 100.