Meaning & use

pen cap

noun·Everyday

Last updated

UK/ˈpen kæp/
US/ˈpen kæp/

Meaning

  1. nouncountable

    A small cover that you put on the end of a pen to protect the tip or to stop ink from drying out.

    Grammar: Countable: one pen cap, two pen caps.

    Patterns

    • put the pen cap on
    • take the pen cap off
    • a pen cap

    She put the pen cap back on so the ink wouldn't dry out.

    I can't find the pen cap anywhere; it must have rolled under the desk.

    The pen cap has a small clip so you can attach it to your pocket.

Word forms

pluralpen caps

Common combinations

put the pen cap on
Please put the pen cap on after you finish writing.
take the pen cap off
He took the pen cap off and started to write.
lose the pen cap
I always lose the pen cap when I'm in a hurry.
pen cap clip
The pen cap clip broke, so I can't attach it to my shirt.

Synonyms and how they differ

pen lid
Less common for a pen; 'lid' is more often used for containers like bottles or boxes.
cap
A short form; you can say 'the cap' if it is clear you mean the pen cap.

Word family

pen noun
A tool for writing or drawing with ink.
cap noun
A cover or top for an object, such as a bottle or pen.

Commonly confused: pen cap or pen lid?

pen cap vs pen lid

'Pen lid' is sometimes used, but 'cap' is the usual word for a pen. 'Lid' is more common for containers.

Practice

Complete the sentence: Don't forget to put the ___ back on your pen, or the ink will dry out.

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