A series of eight notes in music.

An interval of eight diatonic degrees, used to describe the distance between two pitches.

दो सुरों के बीच का आठ वजा का अंतर.

English Usage: "The notes C and C are an octave apart."

Hindi Usage: "नोट C और C एक ऑक्टव के अंतर पर हैं."