noun
plural pens
a writing instrument that uses ink [count]
put/set pen to paper
to write or begin to write something
verb
pens; penned; penning
[+ obj] :to write (something)
noun
plural pens
[count] :a small enclosed area for farm animals
verb
pens; penned; penning
[+ obj] :to put or keep (a person or animal) in an enclosed area - usually used as (be) penned
pen in/up
[phrasal verb]
pen (someone or something) in/up :to put or keep (a person or animal) in an enclosed area :to prevent (someone or something) from moving beyond a particular area - usually used as (be) penned in/up
noun
compare 1pen 3pen
the pen
US informal :prison