It literally means the triple union society.

San Ho Hui
San Hi Hui
San Hu Hui
San Ho Hu

The meaning of "San Ho Hui", "San Hi Hui", and "San Hu Hui" can vary depending on the context and language involved. However, if we break down the meaning of each individual word:

- "San" can refer to various things depending on the language. In Mandarin Chinese, it can mean "three".
- "Ho" or "Hi" is not a commonly recognized word in English or Mandarin Chinese, so it's unclear what it may represent without further context.
- "Hui" is a term commonly used in various languages and can have different meanings. In Mandarin Chinese, it can mean a society or association.

Therefore, without further context, it is difficult to determine the exact meaning of these terms.