What is the meaning of mortal?

noun

• A human being.
  • usage: "there was too much for one person to do"
  • synonyms: person, individual, someone, somebody, soul

adjective

• Subject to death.
  • usage: "mortal beings"
• Involving loss of divine grace or spiritual death.
  • usage: "the seven deadly sins"
  • synonyms: deadly
• Unrelenting and deadly.
  • usage: "mortal enemy"
• Causing or capable of causing death.
  • usage: "a fatal accident"; "a deadly enemy"; "mortal combat"; "a mortal illness"
  • synonyms: deadly, deathly