What is another word for a misspelled word?

There isn't one single perfect word for a misspelled word, but here are some options depending on the context:

General:

* Error

* Mistake

* Misspelling

* Typo (short for typographical error)

More formal:

* Solecism (a grammatical error, but can also refer to a misspelling)

* Miswritten word

Informal:

* Foul-up

* Blooper

* Goof

The best choice will depend on the specific situation and your desired tone.