Word Processing

Ignoring the meaning of a negation will flip the polarity of your text.

Spell Checkers can recommend corrections on the word level.

Besides Stemming or Lemmatizing, there still might be a need to edit words to move to more default words.

Lemmatization usually refers to rewriting a word to its base form (lemma) properly.

Stemming refers to a crude heuristic process that chops off the ends of words in the hope that words with the same meaning become words with the same syntax.