timekeeper

Everyday

1. A timekeeper is a person who keeps track of time in a game, race or event, often with a stopwatch, and says when time is up. tree →
2. A good timekeeper is someone who is always on time: «She is an excellent timekeeper». tree →
3. A timekeeper can also be a clock or watch, judged by how accurately it keeps time. tree →

In the lessons

In PE, sports days and debates, a pupil may be chosen as timekeeper to time races or speeches. In school reports and jobs, «a good timekeeper» means someone punctual. In maths, timekeepers record times in minutes, seconds and hundredths. Phrases: «official timekeeper», «good timekeeper», «poor timekeeper».

Examples

• I was the timekeeper for the 100-metre race. tree →
• The timekeeper blew the whistle when time was up. tree →
• My teacher says I am a good timekeeper. tree →
• The old clock is still an accurate timekeeper. tree →
• The timekeeper recorded 14.5 seconds for Sam. tree →
• In group work, one person is the timekeeper. tree →

Note

One word, countable. In time problems, the timekeeper subtracts start time from finish time to find how long something took.