* It's a misspelling. Double-check the spelling to see if it's a variation of a known word.
* It's a specific term. It could be a technical term, a name, or a word from a particular field or language. Please provide more context about where you encountered this word.
For example, if you heard it in a conversation about a specific subject, tell me what that subject was. If you saw it written, tell me the source and the surrounding text.
The more information you provide, the better I can help you understand the meaning of "sanmesh."