AutoCorrect is a feature found in many software applications, especially in word processors and mobile devices. It automatically corrects spelling mistakes and typos as you type, helping to improve writing accuracy and speed. Users can often customize the settings to add specific words or phrases that they frequently use. This tool works by comparing the typed text against a built-in dictionary. When it detects a mistake, it replaces the incorrect word with the closest match. While AutoCorrect can be helpful, it may sometimes change words incorrectly, leading to confusion or unintended meanings.