pen in
Upper Intermediate (B2)neutral
to keep someone or something shut in one small area
"The farmers penned the sheep in before nightfall."
Hear it in context

How To Believe When You Are Facing Impossible Odds
Myron Golden · 17:52
I have this pen in my hand.

Setting The Trends, Not Following Them. Ep. 3
Peter McKinnon · 30:08
Always have a pen in my car.

Alien Beasts Invade, He Builds an Army of Billions of Mechs and Becomes the Lord of the Human Race!
Top Comic Recap · 163:03
twirling the ballpoint pen in his hand.

Our BUDGET Everyday Tech Gifts ($16 to $100) | MKBHD Team Exchange
The Studio · 17:34
We We have the pen in the office.

Immigration Under President Trump’s First Term | Kids Caught in the Crackdown (full documentary)
FRONTLINE PBS | Official · 2:52
border patrol holding pen in [music] Macallen, Texas.