The girl laughed happily at the joke.

Meaning: This sentence describes a girl expressing joy and amusement as a response to a humorous remark.

Choice of Words: Girl is a noun that refers to a female child. Laughed is the past tense of laugh, which means to make sounds and movements expressing amusement or joy. Happily means feeling or showing pleasure or contentment. Joke is a noun that refers to a funny story or saying that is told to make people laugh.