bastille

Chiefly in French contexts: a bastion (“projecting part of a rampart or other fortification”) or tower of a castle; also, a fortified tower or other building; or a small citadel or fortress.

(figurative) A jail or prison, especially one regarded as mistreating its prisoners.

(disapproving, figurative) Synonym of workhouse (“an institution for homeless poor people funded by the local parish, where the able-bodied were required to work”).

(historical) The fortified encampment of an army besieging a place; also, any of the buildings in such an encampment.

To confine (someone or something) in, or as if in, a bastille or prison; to imprison.