To find something means to discover it. When you're strolling through a green field, you might try to find a four-leaf clover.
You can find something deliberately, or by stumbling upon it, like when you find a five-dollar bill on the sidewalk. In this meaning, find means obtain, but it can also mean observe, such as when you find that reading in dim light gives you a headache. As a noun, find is the thing you discover, like your elephant costume, the best find in day of garage sale shopping.