The phrase “失礼しますshitsureishimasu” is a way of saying “no” to someone when you are doing something. It is an expression of respect used when interfering in some way with another person, or when leaving a place.
しつ れい
失 礼 し ま す。
shitsureishimasu
A typical situation in which the word “excuse me” is used is when you are entering someone’s room. For example, when you walk into your boss’s room, you say “excuse me” and walk in.
In this way, “excuse me” means “I’ll bother you” and “respect” at the same time.
Sorting out the meaning
1 “Don’t know what to do when dealing with others” (Rude).
2 “A polite way of saying leaving someone else” (See you).
3 “Apologize lightly” (Excuse me).
These three meanings are used in different ways depending on the situation.
しつれい
“失礼します shitsureishimasu” used when entering a specific place includes “I don’t know what to do when dealing with others” which is the meaning of 1. In other words, this “excuse me” expresses the feeling of apology ” I’m sorry for causing inconvenience or disturbing you.” Based on this meaning, or it may be translated into English as “I am sorry to bother you”.