What Is It Called When You Use A Word Incorrectly?

What Is It Called When You Use A Word Incorrectly? A malapropism (also called a malaprop, acyrologia, or Dogberryism) is the mistaken use of an incorrect word in place of a word with a similar sound, resulting in a nonsensical, sometimes humorous utterance. What is the difference between a spoonerism and a malapropism? A spoonerism