
Tercentenary
Event Specific
Use 'tercentenary' when referring to 300 years since a particular event, not general time spans.

The university is planning a conference for its tercentenary.
Celebratory Context
Often used when planning or reporting celebrations of 300-year milestones.

The tercentenary of the town's founding included a time capsule burial.
Formal Occasions
Best suited for formal or official communications and writings.

A tercentenary medal was commissioned for the occasion.
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension