San, chan, sempai, sensei? What are all of these?!?

Question:

Could someone sum up all of the Japanese thingies they put at the end of someone's name?! I know some,but I'm still quite confused!

Answer:

Honorifics

they are to signify respect and closeness of a person and they are to be put after the person's name (most commonly last name if they aren't that well known/close).

san = Mr., Ms., Mrs.
Chan = commonly used for kids, mostly girls, but it is fine for a boy to be referred to with this and that is mostly done by elders.
sempai = senior, like a person that has been working at a job longer or in a class longer; sometimes used to mean senior in life
sensei = teacher/doctor, given to a person with a higher level of education and sought for their intellect
kun = same thing as chan, but for boys
bushi = not used anymore, but it was for one fighter to the other
sama = it is like san, but with a higher level of respect
waka = not used anymore, master
kaka = master, boss, leader


to use the wrong honorific could either convey that you like someone, think too much of them, or you are trying to insult them. And if you refer to someone with the high respect terms, you need to speak to them respectfully (yes, there are different forms aof many words in Japanese to show the different levels of respect). There are others, but they are forms of endearment and are shorted from titles of endearment.