Tra từ pen - Từ điển Oxford Advanced Learner 8th

pen [pen pens penned penning] noun, verb BrE [pen] NAmE [pen]
noun
1. (often in compounds)an instrument made of plastic or metal used for writing with ink
•pen and ink
•a new book from the pen of Martin Amis
see also ↑ballpoint pen, ↑felt-tip pen, ↑fountain pen
2. a small piece of land surrounded by a fence in which farm animals are kept
•a sheep pen
3. (NAmE, slang) = ↑penitentiary
more at a slip of the pen/tongue at ↑slip _n.

Word Origin:
n. sense 1 and v. sense 1 Middle English Old French penne Latin penna ‘feather’ late Latin ‘pen’ v. sense 2 and n. sense 2 Old English penn

Example Bank:
•His pen was poised, ready to sign his name.
•I grabbed a pen and began taking notes.
•Let me grab a pen.
•My pen's run out.
•The President has yet to wield his veto pen to block a bill.
•This pen won't write.
•pen and ink drawings
Idioms: ↑pen is mightier than the sword ▪ ↑put pen to paper

verb (-nn-)
1. ~ sth (formal)to write sth
• He penned a letter to the local paper.
2. ~ sb/sth (in/up) to shut an animal or a person in a small space
• At clipping time sheep need to be penned.
•The whole family were penned up in one room for a month.
Verb forms:

Word Origin:
n. sense 1 and v. sense 1 Middle English Old French penne Latin penna ‘feather’ late Latin ‘pen’ v. sense 2 and n. sense 2 Old English penn

Example Bank:
•The whole family was penned up in one room for a month.