What is the meaning of captivity?

noun

• The state of being imprisoned.
  • usage: "he was held in captivity until he died"; "the imprisonment of captured soldiers"; "his ignominious incarceration in the local jail"; "he practiced the immurement of his enemies in the castle dungeon"
  • synonyms: imprisonment, incarceration, immurement
• The state of being a slave."So every bondman in his own hand bears the power to cancel his captivity-Shakespeare
  • synonyms: enslavement