What is -san?
Japanese equivalent of Mr/Mrs/Ms. Most often used with a person's surname, less commonly used with a person's given name. This is used for someone you do not know very well, like a classmate who isn't your friend and isn't in a higher grade, or a co-worker who isn't higher status than you.
Saitou-san wa Tookyoo ni imasu. (Mr/Mrs/Ms Saitou is in Tokyo.)
Attachable suffix used in Japanese language, usually with proper nouns or pronouns. Most often attached to the end of a personal name or surname, but never a nickname. For nicknames, see
'Iwasaki-san? Are you coming?'