* A misspelling of "is" or "us".
* Part of a Spanish word, as "es" is the third-person singular form of the verb "to be" in Spanish.
* Part of a word in another language, as "es" appears in many words across different languages.
To understand what "es" means, you need more context!
For example, if you saw the sentence "He es happy", you'd know that "es" is Spanish for "is".
Please provide more context so I can help you understand what "es" means in your specific situation.