Meaning: The laughter was so loud and joyful that it felt like waves crashing on the shore, bringing happiness to everyone.
Choice of Words: **Laughter's waves** is a metaphor comparing laughter to waves crashing on the shore. **Crashed** means to hit something with force. **Happiness' shore** is a metaphor comparing happiness to a shore, which is the land next to the sea. **Reached** means to arrive at a place.