Pre-nominal letters are like stickers that we put on certain words to give them a special meaning or importance. It's like when we put a sticker on our favorite toy to show that it's really special to us.
In English, pre-nominal letters are often used in titles or names to show someone's position, education, or association with a group or organization. For example, if we see the letters "Dr." before someone's name, it means that person has a doctorate degree in a specific field.
Other common pre-nominal letters include "Mr." for men, "Mrs." or "Ms." for women, "Rev." for a religious figure, "Hon." for someone who holds an honorary title, and "Maj." for a military rank.
These letters can help us understand more about the person and their background or qualifications, and can also show respect or honor for their position or achievements.