What is the meaning of imprisoned?

verb

• Lock up or confine, in or as in a jail.
  • usage: "The suspects were imprisoned without trial"; "the murderer was incarcerated for the rest of his life"
  • synonyms: imprison, incarcerate, lag, immure, put behind bars, jail, jug, gaol, put away, remand
• Confine as if in a prison.
  • usage: "His daughters are virtually imprisoned in their own house; he does not let them go out without a chaperone"
  • synonyms: imprison

adjective

• Being in captivity.
  • synonyms: captive, confined, jailed