Word.ws English Dictionary

augmented fourth

augmented fourth noun: a type of tritone in musical composition. It spans four diatonic scale degrees like a perfect fourth but with an extension of a chromatic semitone. The number of diatonic degrees it spans is what distinguishes it from a diminished fifth.

Noun

augmented fourth (plural augmented fourths)

  1. A type of tritone in musical composition. It spans four diatonic scale degrees like a perfect fourth but with an extension of a chromatic semitone. The number of diatonic degrees it spans is what distinguishes it from a diminished fifth.
    • e.g. C - F is a perfect fourth, C - F# is an augmented fourth, and C - F♭ is a diminished fourth.
    • An augmented fourth on C:
      1

Forms of augmented fourth

pluralaugmented fourths

Questions about augmented fourth

What does augmented fourth mean?
Augmented fourth means a type of tritone in musical composition. It spans four diatonic scale degrees like a perfect fourth but with an extension of a chromatic semitone. The number of diatonic degrees it spans is what distinguishes it from a diminished fifth.
What part of speech is augmented fourth?
Augmented fourth is a noun.
What is the plural of augmented fourth?
The plural of augmented fourth is augmented fourths.

Words near augmented fourth in the dictionary

  1. augmented
  2. augmented assignment
  3. augmented assignments
  4. augmented fifth
  5. augmented fifths
  6. augmented fourth
  7. augmented fourths
  8. augmented interval
  9. augmented intervals
  10. augmented matrix
  11. augmented ninth

Source and license

Adapted from Wiktionary: augmented fourth (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “augmented fourth.” Word.ws, https://word.ws/augmented_fourth. Based on Wiktionary, CC BY-SA 4.0.