timer

A timer is usually a device or feature that measures a set amount of time or counts down until something should happen. You might use one in the kitchen, on your phone, in a workout app, or on an oven or microwave. When the set time ends, it often makes a sound or gives a signal. In some sports, a timer can also be a person whose job is to record how long a race or event takes. So the word can refer either to something that tracks time automatically or to someone who keeps the official time.

The word "timer" most often means a device, app feature, or built-in function that measures a period of time, usually by counting down or sometimes by counting how long something lasts. People use timers when cooking, studying, exercising, parking, playing games, or controlling when a machine starts or stops. A timer may beep, ring, flash, or trigger another action when the set time is over.

The word can also mean a person who records time in an event, especially in sports. At a swimming meet, race, or similar competition, an official timer measures how long each person takes and writes down the result. In this sense, the word refers to the person doing the timing, not the device.

In everyday English, this word is mainly practical and literal. It usually points to something that helps manage time accurately, whether that is a simple kitchen device, a phone feature, a control on a machine, or an official person at a competition. The main idea is always the same: measuring a length of time or signaling when that time has passed.