New means recently made, discovered, or experienced for the first time. A new book is one just published, a new friend is someone you've recently met, and a new skill is something you've just learned.

The opposite of new is old or used. When you get a new bike, it hasn't been ridden before. When you move to a new school, you haven't been there before. When scientists make a new discovery, they've found something nobody knew about until now.

New can describe physical things (new shoes, new buildings) or experiences and ideas (new thoughts, new feelings). Something can be new to the world, like a newly invented device, or just new to you, like a new recipe you're trying for the first time.

The word carries a sense of freshness and possibility. A new day brings fresh opportunities. A new year marks a fresh start. A new challenge gives you a chance to grow and learn something different.

People sometimes say they're starting over or turning over a new leaf when they want to improve their habits or try a different approach. Brand-new means completely unused and fresh, emphasizing that something is as new as it possibly could be.