# epoch
## Noun (N)
### Sense: a period marked by distinctive character or reckoned from a fixed point or event
- ยุค
### Sense: (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
- สมัย
### Sense: a unit of geological time that is a subdivision of a period and is itself divided into ages