How to spell KESTONES correctly?

If you are trying to spell "keystones" but keep getting it wrong, there are a few possible corrections to try. One option is to add the missing "y" and spell it "keystones". Another is to try splitting the word into two words: "key stones". Either way, be sure to proofread carefully to avoid common spelling errors.

• Ketones Ketones are organic compounds that contain a carbonyl group bonded to two hydrocarbon groups.
• Keystones The keystones in the arch provided essential support for the building's structure.

Attenttion

• attention
• attentions
• attenuation
• inattention