The laughter of the children filled the room.

Meaning: This sentence means that the specific laughter from the children filled up the entire room, creating a lively and joyful atmosphere.

Choice of Words: The is a definite article that is used to refer to something specific. In this sentence, the refers to the specific laughter that was heard. Laughter is a noun that describes the act of making sounds of amusement or joy. Of is a preposition that is used to show a relationship between two things. In this sentence, of shows that the laughter belongs to the children. The is a definite article that is used to refer to something specific. In this sentence, the refers to the specific children who were laughing. Children is a noun that describes young people who are not yet adults. Filled is a verb that means to make something full or to occupy a space. Room is a noun that refers to an enclosed space within a building.