show in

This is a phrasal verb that you can split. You can say show him in or show the guest in. It usually follows a simple pattern: [Subject] + show + [Person] + in. It is common to use it when you are busy. For example, you might tell a receptionist, "Please show her in." It sounds much more polite than just saying "tell her to enter."

You will use this constantly in professional settings. Think of a doctor's office or a job interview. It also works perfectly at home. If you have a fancy dinner party, you show your friends in to the dining room. Use it whenever there is a transition from a hallway to a specific room. It makes the movement feel organized and intentional.

Don't use this if someone is already inside the room. It specifically refers to the act of entering. Also, don't use it for pets. You don't show a dog in; you just let it in. If the person knows exactly where they are going, it might feel a bit too formal. Avoid it in very messy, chaotic situations where nobody is acting as a host.

In English-speaking cultures, hospitality is often about the 'guided experience.' Just telling someone "Go to the back" can feel cold or rude. By showing someone in, you are offering your time and presence. Historically, this phrase comes from grand houses with servants. Today, it’s a standard mark of professional and social politeness. It shows you value the person's arrival.

You might also hear show out, which is the opposite. That’s when you walk someone to the exit. There is also show around, which is for a full tour of a house or office. If you want to be extra formal, you could say usher in. However, show in is the perfect middle ground for almost every situation you will face.