An octave is a musical term used to describe the distance between two musical notes. It represents the interval of eight notes on a musical scale. Full definition
What the 1 - series M coupe does remarkably well is indulge in various octaves of power oversteer. (automobilemag.com)
It starts with a chuckle — a couple of octaves higher than expected — and escalates to a rasping hilarity, with staccato aftershocks as the memory of the joke lingers. (scientificamerican.com)
Create 262 disturbances per second and you're playing a middle C. Divide that rate by a factor of two and you get another C one octave lower, and so on. (discovermagazine.com)