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pen

n. · v.
US //ˈpɛn// UK //pˈɛn// pen
  1. 1 writing tool (n.)
    A1 Beginner

    a tool that uses ink to write or draw on paper.

    an instrument for writing or drawing with ink, typically consisting of a metal nib or ball point fitted into a metal or plastic holder.

    Example

    He reached into his pocket to find a pen so he could sign the document.

    Example

    The executive signed the multi-million dollar contract with a vintage fountain pen, a gift from his father upon his graduation.

    • ballpoint
    • fountain pen
    Pitfall
    I wrote the letter with a pen.
    I wrote the letter in pen.

    Use 'in pen' to describe the medium (ink), but 'with a pen' to describe the specific tool used.

  2. 2 animal enclosure (n.)
    B1 Intermediate Zoology

    a small area with a fence around it used for keeping animals like sheep or pigs.

    a small enclosure for livestock or other domestic animals.

    Example

    The farmer kept the young lambs in a separate pen near the barn.

    Example

    The sheep were gathered into a holding pen while the veterinarian performed the annual health inspections.

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  1. 3 medical injector (n.)
    B2 Upper Intermediate Medicine

    a device shaped like a pen used to give yourself medicine, like insulin.

    a medical device designed to deliver a specific dose of medication via a needle, often used for insulin or epinephrine.

    Example

    She always carries an insulin pen in her bag in case her blood sugar gets too high.

    Example

    The patient was instructed on how to use the epinephrine pen immediately if they experienced any signs of an allergic reaction.

  2. 4 prison (n.)
    C1 Advanced Informal Slang American English

    a slang word for a prison.

    a shortened form of 'penitentiary', used to refer to a state or federal prison.

    Example

    He spent five years in the pen before being released for good behavior.

    Example

    After a decade in the state pen, the former inmate struggled to adapt to the rapid technological changes of the outside world.

  3. 5 female swan (n.)
    C2 Proficiency Technical Zoology

    the name for a female swan.

    the adult female of the swan.

    Example

    The pen sat on her nest while the male swan guarded the area.

    Example

    Ornithologists observed the pen carefully tending to her cygnets while the cob patrolled the perimeter of the lake.

  4. 6 to write (v.)
    B2 Upper Intermediate Formal Literary

    to write something, especially a letter or a book.

    to compose and write a text; often used in formal or literary contexts.

    Example

    She decided to pen a short note to thank her hosts for the lovely weekend.

    Example

    The poet spent his final years in a secluded cottage, where he penned his most celebrated collection of sonnets.

  5. 7 to shut in (v.)
    B2 Upper Intermediate

    to put animals into a small fenced area.

    to confine or shut in an animal or person within an enclosure.

    Example

    The cattle were penned up for the night to keep them safe from predators.

    Example

    The protesters felt penned in by the heavy police presence at the edge of the square.

    Usage

    Often used with the particle 'up' as 'pen up'.

Word family
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