How to spell OCTASES correctly?

If you meant to type "octases" but realized it was incorrect, there are a few possible correct suggestions. One could be "octaves", which refers to a musical interval spanning eight notes. Another option could be "octanes", referring to a group of hydrocarbon compounds with eight carbon atoms.

• octanes High-octane fuels like racing gasoline typically have higher octane ratings than regular fuels.
• octaves She could sing in a range of four octaves.

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