David Hepworth

The age of the rock star was coterminous with rock n' roll, which, in spite of all the promises made in some memorable songs, proved to be as finite as the era of ragtime or big bands. The rock era is over. We now live in a hip-hop world.

British Journalist

Often used in geography to discuss areas with shared borders.

Geographical Use

Used in law to describe overlapping jurisdiction or terms.

Legal Context

In business, it often refers to agreements ending together.

Business Agreements

Use when stressing that different things occur in the same timeframe.

Timelines Align

Does not imply one causes the other, only that they occur together.

Not Synonymous

Don't use it to mean 'identical;' it's about timing, not content.

Coterminous