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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

adj. - (of speed) less than that of sound in a designated medium.

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Usage examples (35)
  • Aircraft flying at subsonic speeds
  • There are standard pressure loads, so-called "subsonic" loads, and ultra fast, high pressure, +P and +P+ loads.
  • It's conducted some test flights at subsonic speed.
  • Most likely subsonic rounds, probably nine millimeter.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.