# alarm clock

> type of clock used to wake up a sleeping person at a certain time

**Wikidata**: [Q212758](https://www.wikidata.org/wiki/Q212758)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Alarm_clock)  
**Source**: https://4ort.xyz/entity/alarm-clock


## References

1. Freebase Data Dumps. 2013
2. National Library of Israel
3. KBpedia
4. GF WordNet