settle
To end an argument or decide something for good.
To settle means to resolve something or make it final. When two students have an argument about who won the race, they might settle the dispute by reviewing a video of the finish line. When your parents settle on a restaurant for dinner, they've stopped debating and made their choice.
The word also means to sink down or come to rest. Dust settles on furniture when a room hasn't been cleaned. Snow settles on rooftops. After you shake up a snow globe, the glitter slowly settles to the bottom. When you settle into a comfortable chair, you're letting your body relax and adjust to it.
Settle can mean to establish a permanent home in a new place. When colonists settled in America, they built communities where none had existed before. When your family settles in a new town, you're making it your home: unpacking boxes, learning the neighborhood, and starting to feel like you belong.
You might hear adults talk about settling a bill (paying what's owed) or settling a lawsuit (agreeing to end a legal dispute). When something makes you feel uncomfortable or worried, it can unsettle you. And when someone tells you to settle down, they're asking you to become calmer and quieter.