A tackler is someone who tackles, which in sports means stopping an opponent by grabbing or bringing them to the ground. In football, a good tackler wraps their arms around the ball carrier and drives them down before they can gain more yards. In rugby, tacklers must hit low and hold tight to stop powerful runners in their tracks.

Being an effective tackler requires courage, timing, and technique. A small but determined tackler who uses proper form can bring down someone much bigger. Coaches often say that tackling is about want-to: the player who wants it more usually wins the collision. A missed tackle can mean the difference between stopping a play and giving up a touchdown.

The word can also describe someone who tackles problems or challenges in everyday life. When a student is a good tackler of difficult math problems, they don't shy away from the hard ones. They jump in, work through the steps, and don't give up until they've solved them. In this sense, a tackler is someone who faces challenges head-on rather than avoiding them.