This is the 367th most frequent French word.
s
In French, "s'" is a reflexive pronoun used before verbs, indicating that the subject performs the action on itself.
The word "s'" here is a reflexive pronoun indicating that the subject of the sentence performs the action on themselves.
Il s'appelle Jean.
He is named Jean.
The word "t'" derived from "s'" indicates reflexivity for the second person singular (informal) that the subject is acting upon themselves.
Tu t'habilles rapidement.
You dress yourself quickly.
The word "se" is the reflexive pronoun for the third person plural, showing the action done onto the subjects themselves.