How to spell RACKFULE correctly?

If you meant "Rackful", it means "a full rack". If you meant "Rackfulle", it may be a variant of "Rackeable" meaning able to be racked or racked up. The correct spelling of the word depends on the intended meaning.

• Sackful I bought a whole sackful of apples to make a pie for Thanksgiving.
• Sackfuls During the holiday season, my grandmother bakes dozens of cookies and stores them in sackfuls.

Attenttion

• attention
• attentions
• attenuation
• inattention