What is the abbreviation for word spelling?

There isn't a widely recognized abbreviation for "word spelling." You could use sp. as a short form, but it's not as common as abbreviations for other language elements.

Here are some ways to communicate about word spelling:

* "Spell out..."

* "Please provide the spelling..."

* "How do you spell...?"

Using these phrases makes it clear what you're asking for and avoids any confusion.