Random means happening without any pattern, plan, or predictability. When something is random, you can't figure out what's coming next because there's no underlying order to discover.

If you shuffle a deck of cards thoroughly, the order becomes random: you have no way to predict whether the next card will be red or black, high or low. When a teacher picks a random student to answer a question, every student has an equal chance of being chosen, with no pattern based on seating, alphabetical order, or who answered last time.

Random is different from chaotic or messy. A messy room isn't random; your books and clothes ended up where they are for specific reasons, even if you weren't paying attention. But if you threw dice to decide where to put each item, that would be random placement.

People sometimes use “random” more loosely to mean unexpected or strange: “That was so random!” when a friend suddenly starts talking about dinosaurs in the middle of a conversation about pizza. Mathematicians and scientists, however, use random in the stricter sense: describing events where every possible outcome has an equal chance of occurring, like flipping a fair coin. Computers can generate random numbers to make video games unpredictable, shuffling enemies or treasure locations so each playthrough feels fresh and surprising.