1. devices that measure or record time intervals, or that activate something after a set period
2. people who record or keep track of time, especially in sports or competitions

Examples

• The kitchen timers helped her bake multiple dishes without burning anything.
• Digital timers are more accurate than the old mechanical ones.
• The race officials appointed three timers to ensure accurate results.
• She set multiple timers on her phone to remind her of important tasks.
• The sprinkler system uses automatic timers to water the lawn each morning.
• Professional timers used stopwatches to record the swimmers’ lap times.
• The oven’s built-in timer buzzed when the cookies were ready.