Caution means being careful and alert to possible danger or problems. When you cross a busy street, you use caution by looking both ways and listening for traffic. When a scientist handles chemicals in a lab, she works with caution to avoid accidents. A cautious person thinks ahead and considers what might go wrong before taking action.

The word also describes a warning. Signs along hiking trails might display “Caution: Steep Drop Ahead” to alert hikers to danger. A teacher might caution students about the difficulty of an upcoming test, giving them advance notice so they can prepare properly.

Being cautious doesn't mean being fearful or timid. A cautious rock climber still climbs challenging routes, but checks equipment carefully and plans each move. A cautious chess player considers several possibilities before moving a piece. Good caution means being thoughtful and prepared, not paralyzed by worry.

Sometimes people throw caution to the wind, meaning they decide to take a risk despite possible consequences. But generally, caution serves us well. Learning a new skill like skateboarding goes better when you start with caution, wearing protective gear and practicing easier moves before attempting harder tricks. Caution helps you stay safe while still trying new things and taking on challenges.