Definitions

1. noun

The study of events, processes, or phenomena through time, often involving a comparison of different time periods or historical contexts.

“The historian’s work focused on diachrony, examining the evolution of societal norms over several centuries.”

2. noun

A comparison or analysis of events, processes, or phenomena across different time periods, often to identify patterns or trends.

“The sociologist used diachrony to analyze the changes in family structures over the past century.”