Spartan

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of or relating to Sparta or its people.
• adjective Rigorously self-disciplined or self-restrained.
• adjective Simple, frugal, or austere.
• adjective Marked by brevity of speech; laconic.
• adjective Courageous in the face of pain, danger, or adversity.
• noun A citizen of Sparta.
• noun One of Spartan character.

from The Century Dictionary.

• Of or pertaining to Sparta or Lacedæmon, the capital of Laconia, or the ancient kingdom of Sparta or Lacedæmon (Laconia), in the Peloponnesus; Lacedæmonian; specifically, belonging to the branch of the ancient Dorian race dominant in Laconia.
• Noting characteristics distinctive of, or considered as distinctive of, the ancient Spartans.
• noun A native or an inhabitant of Sparta or Laconia; a Lacedæmonian; specifically (as opposed to Lacedæmonian in a narrower sense), a member of that branch of the ancient Dorian race which conquered Laconia and established the kingdom of Sparta, celebrated for its military success and prestige, due to the rigid discipline enforced upon all Spartans from early childhood; a Spartiate.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to Sparta, especially to ancient Sparta; hence, hardy; undaunted

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• proper noun A citizen of Sparta.
• adjective Of or relating to Sparta or its citizens.
• adjective Alternative spelling of spartan.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective of or relating to or characteristic of Sparta or its people
• adjective resolute in the face of pain or danger or adversity
• adjective unsparing and uncompromising in discipline or judgment
• noun a resident of Sparta
• adjective practicing great self-denial