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Definition of "sonic" [sonic]

  • Of or relating to audible sound: a sonic wave. (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: a sonic lifestyle. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "sonic" in a sentence
  • "Usually when scientists use the term sonic, they're talking about soundwaves or things moving at the speed of sound."
  • "Our last eyewitness actually hearing what she described as a sonic boom before that plane went down."
  • "On his new album, "Earfood," made with his Quintet, Hargrove stayed close to the standard sound to create what he calls sonic pleasure."