Meaning: This sentence describes the sound of laughter spreading and resonating throughout a park, creating a joyful atmosphere.
Choice of Words: "Joyous" means full of joy or happiness. "Laughter" refers to the act of laughing, expressing amusement or joy. "Echoed" means to repeat or reverberate a sound. "Through" indicates movement across or inside something. "Park" is a public area with trees, grass, and often other facilities for recreation.