sound barrier
Word Rarity
Uncommon
Frequency: Zipf frequency 4.11 in modern English
15
Scrabble Score
12
Letters
3
Syllables
10
Unique Chars
Meaning
noun
Sonic barrier, the sudden increase in drag (resistance) and other effects experienced by moving objects when their speed approaches that of sound or becomes supersonic (which used to be considered a barrier to higher speeds).
Uncountable
Example Sentences
- "St Ives: The guided busway on the old railway alignment to Cambridge has just passed its tenth anniversary. Railfuture has noted its down-at-heel physical appearance, with dirty concrete beams, damaged sound barriers, and unmanaged vegetation."