What part of speech is “mr”

Mr. is a noun that refers to a man, typically one in a professional or formal setting. It is an honorific form of address and is usually used in combination with someone's surname and not their first name. For example, 'Mr Smith' or 'Mr Jones'. It is often abbreviated to 'Mr' and is often used to demonstrate respect or politeness.

1. The student was asked to address the teacher as 'Mr Smith'.

2. Mr Anderson came to pick up his daughter from school.

3. It's always polite to address people as sir or mr.

It is important to remember that you should only use Mr when addressing a man; for women, Miss or Mrs should be used. It is also important to be aware of professional titles such as 'Doctor' and 'Professor' so you can address an individual correctly.