What is the meaning of canned?

verb

• Preserve in a can or tin.
  • usage: "tinned foods are not very tasty"
  • synonyms: can, tin, put up
• Terminate the employment of; discharge from an office or position.
  • usage: "The boss fired his secretary today"; "The company terminated 25% of its workers"
  • synonyms: displace, fire, give notice, can, dismiss, give the axe, send away, sack, force out, give the sack, terminate

adjective

• Recorded for broadcast.
  • usage: "a transcribed announcement"; "canned laughter"
  • synonyms: transcribed
• Sealed in a can or jar.
  • synonyms: tinned