enough
Having as much as you need, not too little or much.
Enough means having as much of something as you need, without having too little or too much. When you've eaten enough dinner, you're satisfied but not uncomfortably full. When you have enough time to finish your homework, you can complete it without rushing or running out of minutes.
The word can express satisfaction: “That's enough practice for today.” It can set a boundary: “I've had enough of this noise!” And it can describe sufficiency: “Do we have enough paint to finish the mural?”
Sometimes enough appears after the word it describes: “Is the water warm enough for swimming?” Other times it comes before: “We have enough chairs for everyone.” The placement shifts, but the meaning stays the same.
Understanding enough means recognizing when to stop or when you have what you need. A baker knows when she's kneaded the dough enough. A student knows when he's studied enough to feel prepared. Learning to recognize enough is surprisingly tricky: some people never feel they have enough, while others are content with very little. Finding that balance, where enough truly feels like enough, is part of growing wise about what matters.