The definition of a typo is a typographical error made while typing on a computer or typewriter or when setting type for a printing press.(noun)
If you write "from" when you really mean" form," this is an example of a typo.
See typo in Webster's New World College Dictionary
noun pl. typos
Origin: < Gr typos: see type
See typo in American Heritage Dictionary 4
noun pl. ty·pos
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