What is the meaning of Spartan?

noun

• A resident of Sparta.

adjective

• Of or relating to or characteristic of Sparta or its people.
• Resolute in the face of pain or danger or adversity.
  • usage: "spartan courage"
• Unsparing and uncompromising in discipline or judgment.
  • usage: "a parent severe to the pitch of hostility- H. G. Wells; "a hefty six-footer with a rather severe mien"; "a strict disciplinarian"; "a Spartan upbringing"
  • synonyms: severe
• Practicing great self-denial.
  • usage: "Be systematically ascetic... Do... Something for no other reason than that you would rather not do it- William James; "a desert nomad's austere life"; "a spartan diet"; "a spartan existence"
  • synonyms: ascetic, ascetical, austere