Sunny describes weather when the sun is shining brightly without clouds blocking it. A sunny day is perfect for playing outside, going to the beach, or having a picnic. The opposite would be cloudy, overcast, or stormy weather.

The word also describes a cheerful, optimistic personality. When someone has a sunny disposition, they approach life with brightness and positivity, like sunshine itself. You might say your friend has a sunny smile that makes everyone around her feel happier.

Places can be sunny too: a sunny spot in your house is where light streams through the windows, making it warm and bright. Gardeners look for sunny locations to plant vegetables that need lots of light to grow.

The expression look on the sunny side means focusing on the positive aspects of a situation rather than dwelling on problems. If your baseball game gets rained out but you get to spend the afternoon at the library instead, looking on the sunny side means appreciating the unexpected fun rather than being disappointed about the game.