noun, verb, penned, pen⋅ning.| 1. | any of various instruments for writing or drawing with ink or a similar substance. |
| 2. | a detachable metal penpoint, filled by dipping or with a quill; nib. |
| 3. | such a penpoint with its penholder. |
| 4. | fountain pen. |
| 5. | ball-point pen. |
| 6. | the pen as the instrument of writing or authorship: The pen is mightier than the sword. |
| 7. | a person's style or quality of writing: He writes with a witty, incisive pen. |
| 8. | a writer: I leave this story to abler pens. |
| 9. | the profession of writing: a master of the pen. |
| 10. | stylus (def. 3). |
| 11. | Ornithology.
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| 12. | something resembling or suggesting a feather or quill. |
| 13. | Zoology. an internal, corneous or chitinous, feather-shaped structure in certain cephalopods, as the squid. |
| 14. | to write with or as with a pen; put down in writing: to pen an essay. |
| 15. | to draw with or as with a pen: to pen a sketch. |

noun, verb, penned or pent, pen⋅ning.| 1. | a small enclosure for domestic animals. |
| 2. | animals so enclosed: We have a pen of twenty sheep. |
| 3. | an enclosure used for confinement or safekeeping: We have built several pens to hold our harvest of corn. |
| 4. | playpen. |
| 5. | bull pen. |
| 6. | a dock having a protective concrete structure overhead, used to service and repair submarines. |
| 7. | to confine in or as in a pen. |

| var. of pene- before a vowel: penannular. |
| International Association of Poets, Playwrights, Editors, Essayists, and Novelists. |
| a combining form meaning “almost,” used in the formation of compound words: penecontemporaneous. |
pen 2 (pěn) n.
To confine in or as if in a pen. See Synonyms at enclose. [Middle English, from Old English penn.] |
PEN
In currencies, this is the abbreviation for the Peruvian Nuevo Sol.
Investopedia Commentary
The currency market, also known as the Foreign Exchange market, is the largest financial market in the world, with a daily average volume of over US $1 trillion.
See also: Currency, FOREX, Hard Currency, Money
Also spelled: PEN
| pen penitentiary |
PEN
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