* A misspelling: Perhaps the intended word was "7s," which could be a shortened version of "seven(s)."
* A specific code or slang term: It could be used within a particular community or context, like a game, online forum, or group of friends.
* A placeholder: Sometimes random letters are used as placeholders for something that is still being determined or has been redacted.
To understand the meaning of "7es," you need more context.
Could you please provide more information about where you saw this abbreviation or what it was referring to?