The state of being imprisoned:
— He was held in captivity until he died.

synonyms: immurement, imprisonment, incarceration.

Roget 751: restraint; hindrance etc. 706; coercion etc. (compulsion) 744; cohibition^†, constraint, repression, suppression; discipline, control.    confinement; durance, duress; imprisonment; incarceration, coarctation^†, entombment, mancipation^†, durance vile, limbo, captivity; blockade.    arrest, arrestation^†; custody, keep, care, charge, ward, restringency^†.    curb etc. (means of restraint) 752; lettres de cachet [Fr.].    limitation, restriction, protection, monopoly; prohibition etc. 761.    prisoner etc. 754; repressionist^†.    ... show more

Dutch: opsluiting, detentie, gevangenschap
Polish: kiblowanie, siedzenie za kratkami, siedzenie

The state of being a slave:
— So every bondman in his own hand bears the power to cancel his captivity.

synonym: enslavement.

Polish: niewola, niewolnictwo