cap · noun C /kæp/Full view
cap
A2 a hat with a curved part at the front
Dictionary example:

He wears a baseball cap.

Learner example:

I want to buy sho[es], [a] pull-over, tee-shirt, cap and sun glasses. (Key English Test; A2; French)

cap · verb T /kæp/
cap
C1 to put a limit on an amount of money that can be borrowed, charged, etc.
Dictionary example:

The interest rate has been capped at 5%.

Learner example:

The cost should also be delinked from the international petrol prices and capped at certain fixed rates for a fixed term. (International English Language Testing System; C1; Malayalam)

to cap it all
C1 used when you mention something in addition to all the other bad or disappointing things that have happened
Dictionary example:

It's been a terrible week and now, to cap it all, the car's broken down.

Learner example:

To cap it all, there was often not enough to eat. (Certificate in Advanced English; C1; French)

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