spelling mistake
misspelling

In both cases it would be better to describe these not as misspellings.

"We look at misspellings people have made the day before," he explained.

What was the teacher's defense when informed of all his misspellings?

He would then change a word here and there, correct a misspelling, whatever.

Any list of common misspellings would most likely have to be collected by hand.

"I can live with that kind of misspelling," he said.

Almost all the necessary corrections of misspellings have been made.

"Wrong capitals and misspellings, those are the words she wanted us to know!"

It was an unfortunate misspelling that gave the town its name.

They found it on his computer long after he was dead, with the misspellings of a quickly written e-mail.

Do not describe this as a misspelling for the purpose of analysis.

Despite this misspelling, his role is relatively consistent with history.

If anyone would forgive me for misspelling, it was Ricky.

If this man has any chance of becoming a teacher, these misspellings destroy it.

It may be just a word or phrase, including an intentional misspelling.

Maybe it was just a misspelling and he really was with the Americans.

I told her about the letter and the misspellings.

Many variations were due to misspellings in American or other country's immigration services.

There are several misspellings and illegitimate names on the Cup.

(A misspelling of the family name that continues to this day).

Thank goodness it was just a misspelling and not something more serious."

People really seem to have trouble with her given name (there's not a single misspelling of Spears on the list).

The misspellings, by the way, appear to be confined to the menus.

The name is a misspelling of the French term for "scapegoat".

There are also various misspellings like this for specific Windows versions as well.