“Capital” and “capitol” sound identical but refer to very different things — one is a broad, multi-purpose word, and the other refers specifically to a single type of building.
The Short Answer
Capital has several meanings: a city that serves as a seat of government, uppercase letters, or financial assets. Capitol refers specifically to the building where a legislature meets.
Examples of “Capital”
- Paris is the capital of France.
- Start the sentence with a capital letter.
- The company raised capital through investors.
- Capital punishment remains a controversial topic.
Examples of “Capitol”
- Protesters gathered outside the Capitol building.
- The senator’s office is located in the Capitol.
- Tourists can take a guided tour of the Capitol.
- The state capitol sits at the top of the hill.
A Simple Memory Trick
“Capitol” has an “o,” like the dome on the U.S. Capitol building — a visual shape you can associate with the word itself. “Capital” is the broader, more common word for everything else: cities, letters, and money.
Why “Capitol” Is So Narrow
“Capitol” comes specifically from the Capitoline Hill in ancient Rome, home to a temple dedicated to Jupiter — the word was later adopted in the U.S. to name the specific building where Congress meets, and by extension, similar state legislature buildings. Because this origin is so specific, “capitol” never expanded to cover other meanings the way “capital” did.
Frequently Asked Questions
Which word refers to a government building?
A: “Capitol,” spelled with an “o,” refers specifically to the building where a legislature meets.
Which word refers to a city or uppercase letters?
A: “Capital” covers all other meanings, including capital cities, capital letters, and financial capital.
Is “state capitol” or “state capital” correct for a city?
A: “State capital” is correct when referring to the city itself; “state capitol” refers only to the building where the state legislature meets.
