spellcheck noun 2verb 2forms 3 noun2 •The act of spellchecking.You'd better run another spellcheck now that you've written that extra chapter. •A spellchecker.My wordprocessor is supposed to have a spellcheck, but I don't know how to use it. verb2 •To check that words in written text are properly spelled. •To run a spellchecker on (a document). formsspellchecked · spellchecking · spellchecks