關於San的意思和用法的提問

A: Sand, not san. It means you take sand, like from the beach, and put it in someone's eyes.

Also lol this is such a random sentence. Where did you hear it??

A: I'm guessing you mean in Japanese.
They are suffixes to use when addressing people.
さん (san): you use it when addressing people older than you or just people your age you talk formally to (co-workers, etc.), both male and female. It is the most used suffix.
ちゃん (chan) and くん (kun) are less formal, mostly used with children ("chan" for girls and "kun" for boys) or with a friend you are very close to ( "kun" can be used when talking to people younger than you (men) but it is usually "san" for women).
さま (sama) is extremely formal, use for gods or the emperor and such. It can also be used ironically on you or other people (it has an arrogant meaning to it when used that way).
どの (dono) is also very formal (I'm not sure how much is it used today, but in the past it was used with people you have a lot of respect).

A: a family of 3 groups, or do you mean 3 groups of families?

a family of 3 groups = one big family, 3 groups
3 groups of families = 3 families, each family is a group.

A: 請到提問詳情頁確認

A: I arrived in san Diego

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A: I would not include it at all. I would use the person's full name, or an English title instead, like Mr. or Mrs. or Dr.

A: × That way makes me feel like we are even.
✓ That way, it makes me feel like we are even.

to make it more natural/casual , you can remove “when i reply to their messages”

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A: What do you mean by "san"?

A: 'I'm going to San Fransisco on Mar. 1. This is my first visit to the USA so I don't know (I'm sorry but I am actually not sure what you mean by the "do A to Z". If you let me know, I can help correct that part, too). For example, is walking on the streets at night dangerous? What's famous in San Fransisco?'

Please let me know what you meant by "to do A to Z" so I can assist with any corrections to help you make it sound more natural.