Criteria are the standards or rules you use to make a decision or judgment. Think of them as the specific things you're looking for when choosing between options.

When your teacher grades an essay, she uses criteria like clear organization, correct grammar, and strong evidence. When a soccer coach picks players for the team, his criteria might include speed, ball control, and teamwork. When you're choosing which book to read next, your criteria might be that it has adventure, interesting characters, and isn’t too long.

The word is plural. A single standard is called a criterion, but people almost always talk about multiple criteria because good decisions usually involve weighing several factors together.

Criteria help make choices fair and consistent. If everyone knows the criteria ahead of time, they understand what matters and can prepare accordingly. Without clear criteria, decisions can seem random or unfair. When colleges review applications, they publish their criteria so students know what to emphasize. When judges score projects at a science fair, they share their criteria so everyone competes on the same terms.

Understanding the criteria for something helps you focus your efforts on what actually matters rather than guessing or worrying about the wrong things.