dans sa cellule

in his cell

→ dans
phrase Rare #37,534
in his cell Usually refers to a prison cell in this context. The possessive sa can mean “his,” “her,” or “its,” depending on the context.
FR: Le prisonnier est resté dans sa cellule toute la journée.
EN: The prisoner stayed in his cell all day.

Duk-sam est dans sa cellule.

Duk-sam is in his cell.

— Assassination (2015)

Tom s'est pendu dans sa cellule de prison.

Tom hanged himself in his prison cell.

Ramenez-le dans sa cellule.

Take him back to his cell.

L'autre s'est pendu dans sa cellule.

The other hanged himself in his cell.

— Mystic River (2003)

Il reste tous les jours dans sa cellule.

He stays in his cell every day.

— Un prophète (2009)

Le prisonnier est mort dans sa cellule cette nuit.

The prisoner died in his cell last night.