Is “Pen” a Scrabble word?
Yes
PEN
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Pen
/pɛn/
noun
1.An enclosure (enclosed area) used to contain domesticated animals, especially sheep or cattle.
“There are two steers in the third pen.”
2.A prison cell.
“They caught him with a stolen horse, and he wound up in the pen again.”
3.The bullpen.
“Two righties are up in the pen.”