A spellcheck is the tool that flags words spelled wrongly. Run a spellcheck, the spellcheck missed it, do a spellcheck first.
It only knows whether a word exists, not whether it is the right one, which is why a spellcheck will pass form for from every time. Proper nouns and technical terms are its other blind spot.
1nounspellcheckThe tool that flags words spelled wrongly.
“Always run a spellcheck before you send your CV to an employer.”
spellcheck is a tool.
A back-formation from spellchecker, itself spell plus checker.
a back-formation from spellchecker.
Etymology from Wiktionary, CC BY-SA
Practised in Computing & Code