A typo, short for "typographical error," occurs when a mistake is made in the typing process. This can include misspelled words, incorrect punctuation, or misplaced letters. Typos often happen due to fast typing, distractions, or simple oversight, and they can change the meaning of a sentence or make it harder to read. While typos are common in everyday writing, they can be particularly problematic in professional documents, such as emails or reports. Tools like spell checkers and grammar checkers can help identify and correct typos, ensuring clearer communication.