Definitions

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

  • adjective Of or relating to audible sound.
  • adjective Having a speed approaching or being that of sound in air, about 1,220 kilometers (760 miles) per hour at sea level.
  • adjective Slang Extremely exciting and fast-paced.

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

  • adjective of or relating to sound
  • adjective having a speed approaching that of the speed of sound in air

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

  • adjective (of speed) having or caused by speed approximately equal to that of sound in air at sea level
  • adjective relating to audible sound

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[From Latin sonus, a sound; see swen- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin sonus.

Examples

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