quiet

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

• adjective Making or characterized by little or no noise.
• adjective Free of turmoil and agitation; calm.
• adjective Providing or allowing relaxation; restful; soothing.
• adjective Not showy or bright; subdued.
• adjective Restrained, as in style; understated.
• adjective Out of public scrutiny; known or discussed by few.
• noun The quality or condition of being quiet.
• intransitive verb To cause to become quiet.
• intransitive verb To make (a title) secure by freeing from uncertainties or adverse claims as to the ownership.
• intransitive verb To become quiet.

from The Century Dictionary.

• noun Rest; repose; stillness.
• noun An undisturbed condition; tranquillity; peace; repose.
• noun An undisturbed state of mind; peace of soul; patience; calmness.
• noun Synonyms Repose, Tranquillity, etc. See rest.
• To bring to a state of rest; stop.
• To make or cause to be quiet; calm; appease; pacify; lull; allay; tranquillize: as, to quiet the soul when it is agitated; to quiet the clamors of a nation; to quiet the disorders of a city.
• Synonyms To compose, soothe, sober; to still, silence, hush.
• To become quiet or still; abate: as, the sea quieted.
• Being in a state of rest; not being in action or motion; not moving or agitated; still: as, remain quiet; the sea was quiet.
• Left at rest; free from alarm or disturbance; unmolested; tranquil.
• Peaceable; not turbulent; not giving offense; not exciting controversy, disorder, or trouble.
• Undisturbed by emotion; calm; patient; contented.
• Free from noise or sound; silent; still: as, a quiet neighborhood.
• Free from fuss or bustle; without stiffness or formality.
• Not glaring or showy; not such as to attract notice; in good taste: as, quiet colors; a quiet dress.
• = Syn. 1-5. Placid, Serene, etc. (see calm), peaceful, unruffled, undisturbed.
• Meek, mild.

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

• intransitive verb To become still, silent, or calm; -- often with down.
• noun The quality or state of being quiet, or in repose; as an hour or a time of quiet.
• noun Freedom from disturbance, noise, or alarm; stillness; tranquillity; peace; security.
• noun still; peaceful.
• noun quietly.
• noun [Obs.] disturbed; restless.
• transitive verb To stop motion in; to still; to reduce to a state of rest, or of silence.
• transitive verb To calm; to appease; to pacify; to lull; to allay; to tranquillize
• adjective In a state of rest or calm; without stir, motion, or agitation; still
• adjective Free from noise or disturbance; hushed; still.
• adjective Not excited or anxious; calm; peaceful; placid; settled
• adjective Not giving offense; not exciting disorder or trouble; not turbulent; gentle; mild; meek; contented.
• adjective Not showy; not such as to attract attention; undemonstrative

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

• adjective With little or no sound; denoting absence of disturbing noise.
• adjective Having little motion or activity; calm.
• adjective Not busy, of low quantity.
• adjective Not talking much or not talking loudly; reserved.
• verb To become quiet, silent, still, tranquil, calm.
• verb To cause someone to become quiet.
• noun The absence of sound; quietness.
• noun the absence of movement; stillness, tranquility

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

• noun the absence of sound