Other forms: penned, pens, penning
A pen is the thin tube of ink you write with. The one clipped into a shirt pocket, the one on a chain at the bank counter, the blue one that dries up halfway through an exam.
The point of a pen, against a pencil, is that the ink stays: you cannot rub it out. Ballpoint, fountain pen, felt-tip, marker pen — all pens. To pen something is to write it, and it sounds old-fashioned and literary: she penned a short note before she left. Then there is a second pen with nothing to do with writing, a small fenced area for animals — a sheep pen, a pigpen — and from that comes the verb to pen animals in, and the feeling of being penned in yourself when a room is too small.
1nounpenA hand-held instrument that writes with ink.~88%
“He borrowed a pen from the woman behind him and signed the form.”
2verbcomposeTo write something by hand, especially a letter or a piece of writing.~2%
“She penned a short apology and slid it under the door.”
3nounenclosureA small fenced area for keeping farm animals.~8%
“The lambs were moved into a pen beside the barn.”
4verbconfineTo shut animals or people into a small enclosed space.~2%
“The cattle were penned in the corner of the field all night.”
synonyms: confine, coop up
Shares are an estimate: a language model read 12 sentences found in the wild and placed 12 of them on a sense — a count of our sample, not a measurement of English.
pen is a writing tool.
The pen that holds animals goes back to Old English penn, an enclosure or fold, from Proto-Germanic *pennō, a pin, bolt or nail, and beyond that to a Proto-Indo-European word *bend- for a pointed peg or edge. It is family to pin, and the picture is the stakes driven into the ground to make the fence. Middle English penne kept it for animals. From about 1845 people began using pen for an enclosure holding people, and by 1884 it was being read as a short form of penitentiary.
Proto-Indo-European
*bend- — pointed peg, nail, edge
Proto-Germanic
*pennō
Old English
penn — enclosure, fold, pen
Middle English
pen
English, today
pen
Built from
+ (enclosure) From Middle English pen, penne (“enclosure for animals”), from Old English penn (“enclosure, fold, pen”), from Proto-Germanic pennō, pannijō (“pin, bolt, nail, tack”), from Proto-Indo-European bend- (“pointed peg, nail, edge”). Related to pin. Sense “prison” originally figurative extension to “enclosure for persons” (1845), later influenced by penitentiary (“prison”), being analyzed as an abbreviation (1884).
Etymology from Wiktionary, CC BY-SA