How to spell NACKWOOD correctly?

If you meant "nackwood", it may be a misspelling of "knockwood" or "nockwood". "Knockwood" refers to avoiding bad luck by knocking on wooden surfaces, while "nockwood" was an Old English term for the notches on a bow used for aiming. Double-check the context to ensure the accurate term is used.

• backwoods Growing up in the backwoods of Kentucky, Sarah never imagined she would one day be a successful business owner in New York City.
• blackwood The musician played his guitar made of fine blackwood.
• Jackwood
• Lockwood Lockwood was skeptical of the new project proposal.

Attenttion

• attention
• attentions
• attenuation
• inattention