In Korean 씨 (ssi) is the honorific suffix. Just as the title suggests, it gestures respect to the name it is suffixed to. Its usage is a bit different than the English counterparts: Mister, Misses, Miss.
Here are a few properties of the honorific suffix 씨 (ssi).
1. It can be used to respect anybody. It is unisex and can be used regardless of age (although children tend not to be honored).
2. It is used more frequently than the English titles, Mister, Misses, and Miss. If two people are not on casual terms, they will typically suffix 씨 (ssi) to the other person's name. This can even apply if two people have been acquaintances or even friends for a long time.
3. It is only used when referring to someone else. One cannot suffix 씨 (ssi) to their own name.
4. When it is suffixed to a name, it must be suffixed to a person's given name. As Korean names typically have family names in front with given names following that, the honorific suffix must always be attached to the person's given name, as the given name is always at
the end. If the honorific suffix is attached to only the person's family name, the honorific suffix becomes demeaning and disrespectful.