WordGarden.ioepoch
C2Pronunciation
UK
- /ˈɛpɒk/
US
- /ˈɛpək/
Meanings
Noun
a distinctive period in history, life, or development
a reference date or moment from which timestamps are counted
one complete pass through a machine-learning training dataset
More meaningsFewer meanings
a unit or division of geologic time
a reference date for astronomical positions or calculations
Beyond the definition
Imagine history as a long river. This word does not mean the whole river, but one clear stretch of it: a significant period of time shaped by special events or features. Think of the time of the Industrial Revolution, marked by major social and technological change. Or think of a scientific age that begins when a new discovery changes how people see the world.
It is not just any block of time. It suggests a period that feels clearly different from what came before or after. It can be geological, or it can be cultural, political, or technological. If someone says we are entering a new one, they mean that deep, important change is happening.
The word "epoch" refers to a particular period of time in history or geology, typically one marked by distinctive features, influential people, or life-changing events. It is more than just a chronological timeframe; it suggests a turning point, a significant era that fundamentally shapes the world around us.
Originally derived from a Greek word meaning a "check," "pause," or "fixed point in time," the term evolved to describe a specific moment used as a reference point for dating—like the beginning of an age. In the scientific world, geologists use epochs to divide Earth's history into precise segments within larger periods. For example, we live in the Holocene Epoch, which is part of the broader Quaternary Period.
However, in everyday language, "epoch" is often used more broadly to describe a remarkable chapter in human history. We might speak of an epoch of industrial growth, or a new digital epoch shaped by rapid technological change. Using this word implies that the time in question has a unique character and a lasting impact on humanity.
You'll often see it used in phrases like "a new epoch," suggesting a significant shift in society, culture, or scientific understanding. For example: "The invention of the printing press marked the beginning of a new epoch in human communication." Or, "Historians debate whether we are currently living through an epoch defined by the global climate crisis."
Ultimately, while the word can simply mean a "period of time," an "epoch" carries much more weight—it signifies a moment that stands out as pivotal and transformative. It's not just when something happened, but how that specific slice of time redefined the world.
Examples
- 1
European history
The invention of printing opened a new epoch in European history.
- 2
Modern change
We are living through an epoch of rapid technological change.
- 3
Team transition
Her retirement felt like the end of an epoch for the team.
- Phrasethe end of an epoch
the end of an important period
- 4
Geology
These rocks were formed in an earlier geological epoch.
- Domaingeological epoch
one division of Earth's history
More examplesFewer examples
- 5
Computing
In Unix systems, timestamps are measured from the epoch: January 1, 1970.
- Domainin computing, the epoch
the fixed date and time used as a starting point
See also
Forms and spellings
2 forms open this card.
Main spelling
- epochnoun
Forms
- epochspluralnoun