English:
* Third-person singular present tense: This is the most common use of "es" in English. It indicates that the subject of the verb is singular and in the present tense. For example: "He sits" or "The cat sleeps".
* Plural possessive: In some words, "es" indicates the plural possessive form. For example: "two cats' tails" or "the ladies' dresses".
* Part of a suffix: "Es" can be part of a larger suffix, such as "-ness", "-less", or "-ness". For example: "kindness" or "careless".
Other Languages:
* Spanish: "Es" can be the third-person singular present tense of the verb "ser" (to be). For example: "Ella es alta" (She is tall).
* French: "Es" can be the third-person singular present tense of the verb "être" (to be). For example: "Il est français" (He is French).
* German: "Es" can be the third-person singular neuter pronoun, meaning "it". For example: "Es regnet" (It rains).
* Italian: "Es" can be the third-person singular present tense of the verb "essere" (to be). For example: "Lui è italiano" (He is Italian).
Without knowing the specific word and language, it's impossible to say for sure what "es" means at the end of a word.
If you provide me with the word and the language it comes from, I can give you a more accurate answer.