›to become quiet and calm, or to make something or someone do this: The weather is expected to settle towards the end of the week.I'll call you back as soon as I've settled the children for the night.Before a performance, she takes three deep breaths to settle her nerves.We're very busy this week, but things should settle (down) a bit after the weekend.UKJoe's parents are very worried about him because he doesn't seem to be able to settle to(= to give his whole attention to) anything.Calming and relaxing