Definition: An augmented interval is an interval that has been sharpened by a half step. Compare the following chords:
See diminished interval.
- A Major Chord (Amaj):
Root: A
Major Third: C♯
Perfect Fifth: E - A Augmented Chord (A+):
Root: A
Major Third: C♯
Augmented Fifth: E♯*
See diminished interval.
Also Known As:
- intervallo aumentato (It)
- intervalle augmenté (Fr)
- übermässige Intervall (Ger)

