memo

A memo, short for memorandum, is a short written message. Most often, it means a brief note shared inside a company, school, or other organization to give information, instructions, or reminders. You might get one from your manager about a policy change, or see one posted to remind everyone about a meeting. It is usually direct and clear, with only the important points.

The word can also mean a short note to help someone remember something. In that sense, it is close to "note" or "reminder." In everyday English, though, people often think first of the workplace meaning: a simple internal message that is a bit more official than a casual chat.

A memo, short for memorandum, is a short written message or note. In the most common modern use, it is a message shared within an organization to communicate information, instructions, requests, announcements, or reminders. It is usually brief, practical, and focused on what people need to know. A manager might send one about a new rule, a school office might write one about a schedule change, or a team leader might share one before an event.

A memo is often more official than a quick chat or text message, but usually less formal than a full letter. That is why it has long been common in workplaces and institutions. Even though email now does much of the same job, people still use the word for short internal messages, especially when the message is meant to be clear, shared with a group, and kept as a record.

Traditionally, a memo often had headings such as "To," "From," "Date," and "Subject." Modern ones may be less formal, but they still tend to be organized and direct. The point is not style or warmth. The point is to pass along important information clearly.

The word can also be used in a broader and less formal way to mean a short note for memory. Someone might write a memo to themselves so they do not forget a task, idea, or phone number. In this sense, it overlaps with "note" and "reminder."

So if you hear the word in everyday English, think of a short written message. Very often it is an internal workplace notice, but it can also simply be a brief note written to help someone remember something.