sound barrier
sound barrier is a valid 13-letter word worth 15 points in Scrabble and 18 in Words With Friends.
the increase in aerodynamic drag as an airplane approaches the speed of sound
Anagrams
Anagrams of sound barrier
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Word lists
sound barrier is a valid 13-letter word worth 15 points in Scrabble and 18 in Words With Friends.
the increase in aerodynamic drag as an airplane approaches the speed of sound