What does tricentennial mean?
A tricentennial is a 300th anniversary or a celebration of one. The adjective tricentennial is commonly used for events, commemorations, and occasions connected with 300 years, and it can more rarely describe something intended to last for three centuries. In a sentence such as “the town marked its tricentennial,” the word functions as a noun; in “a tricentennial celebration,” it modifies the event. The term is formal and usually historical, civic, institutional, or cultural. Its precision distinguishes it from centennial, which marks 100 years, and bicentennial, which marks 200 years. Tricentennial is useful in commemorative writing because it names the exact length of an anniversary without spelling out “three hundredth.” Its vocabulary also reflects its Latin roots: trecenti, meaning three hundred, and annus, year. Though less common than centennial or bicentennial, it is the natural choice for commemorating a 300-year milestone.
A 300th anniversary or the celebration of a 300-year milestone.
"The foundation's tricentennial was marked by a formal ceremony."
Usually singular when referring to a particular anniversary celebration; plural use is uncommon.
Relating to or marking a 300th anniversary; also, less commonly, lasting or intended to last for 300 years.
"The city organized a tricentennial exhibition celebrating three centuries of local history."
The plural is grammatically possible but uncommon, as references are usually to a single anniversary celebration.
"Several communities marked their tricentennials with exhibitions and civic ceremonies."
Three centuries, one word: a tricentennial marks the 300th anniversary.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does tricentennial come from?
Tricentennial was formed in English from Latin trecenti, meaning “three hundred,” and annus, meaning “year,” in the -ennial pattern familiar from centennial and bicentennial. Its vocabulary ultimately depends on Latin centum, “hundred,” with the prefix tri- indicating three. Tercentenary is a closely related alternative formed from the same Latin elements.
How tricentennial is actually used
This is a formal term used especially in historical, civic, institutional, and cultural contexts. Its less common sense for something lasting 300 years should be distinguished from its dominant commemorative sense.
Easily confused with tricentennial
Tricentennial and tercentenary have the same meaning, but tercentenary is the less common alternative spelling.