Capital meaning, definition, and synonyms

Capital is a highly polysemous word, so its meaning depends on context. It can refer to a city that serves as a seat of government, money or assets used for business, a capital letter, or an older adjective meaning excellent or important. Below you’ll find the main everyday senses and the most reliable synonyms.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-09. AI assessment; not a guarantee of accuracy.

Pronunciation

AI-generated pronunciation audio (OpenAI).

Accent: General American English

IPA: /ˈkæpɪtəl/

Easy pronunciation: KAP-ih-tuhl (approximate spelling).

Stress: Stress the first syllable.

Use this pronunciation for the noun meaning the main city where a government is based.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-09. AI assessment; not a guarantee of accuracy.

Capital Meaning

the main city where a country or state is governed from

Part of speech: noun

Definition: the seat of government of a country or state; the city where the government is based

Example: Paris is the capital of France.

Synonyms for this meaning:

seat of government — Describes the place where the government is based.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-09. AI assessment; not a guarantee of accuracy.

Other Meanings of Capital

Meaning 2

money or resources used for business or investment

Part of speech: noun

Definition: wealth in the form of money, property, or assets used to create more wealth

Example: The company needs more capital to expand.

Synonyms for this meaning:

working capital — A specific business-finance term for money available to run operations.

Meaning 3

a large letter, like A or B

Part of speech: noun

Definition: one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis

Example: Please write your name in capitals.

Synonyms for this meaning:

capital letter — The standard everyday term.
majuscule — Technical term for a capital letter.
upper-case letter — Common variant spelling and wording.
uppercase — Common in computing and typography, though often used as an adjective.

Meaning 4

written in capital letters

Part of speech: adjective

Definition: uppercase

Example: Write the heading in capital letters.

Synonyms for this meaning:

majuscule — Technical adjective in typography.

Meaning 5

the top part of a column

Part of speech: noun

Definition: the upper part of a column that supports the entablature

Example: The carved capital topped the column.

Synonyms for this meaning:

cap — Architectural term used for the top of a column.
chapiter — A rarer architectural synonym.

Meaning 6

Marx’s famous book on economics

Part of speech: noun

Definition: a book written by Karl Marx (1867) describing his economic theories

Example: He was reading Capital by Karl Marx.

Synonyms for this meaning:

das kapital — The title of Marx’s work.

Meaning 7

the place best known for something

Part of speech: noun

Definition: a center that is associated more than any other with some activity or product

Example: Hollywood is the movie capital of the world.

Meaning 8

excellent

Part of speech: adjective

Definition: first-rate

Example: That’s a capital idea.

Synonyms for this meaning:

great — An older, somewhat dated adjective sense meaning excellent.

Meaning 9

most important

Part of speech: adjective

Definition: of primary importance

Example: Our capital concern was safety.

Meaning 10

the U.S. government

Part of speech: noun

Definition: the federal government of the United States

Example: The law was debated in the capital.

Synonyms for this meaning:

washington — Refers to the U.S. government metonymically, not a general synonym.

Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-10-09. AI assessment; not a guarantee of accuracy.

Capital Synonyms

Similar Meaning

seat of government

money or resources used for business or investment

working capital

a large letter

capital letter
upper-case letter
uppercase
majuscule

the top part of a column

cap
chapiter

Marx’s book title

das kapital

excellent; first-rate

great

the U.S. federal government

washington

Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-09. AI assessment; not a guarantee of accuracy.

Common Mistakes

Do not confuse capital meaning 'city where the government is based' with capital meaning 'money used in business'.
Capital letter is usually a noun phrase, while capital can also be an adjective meaning 'written in capitals'.
The adjective sense meaning 'excellent' is older and less common in modern English.
Capital in 'the capital of Italy' is not the same sense as capital in finance.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-09. AI assessment; not a guarantee of accuracy.

Frequently Asked Questions

What is the main meaning of capital?

The most common everyday meaning is the city or place where a country's or state's government is based.

What are the best synonyms for capital?

For the government-city sense, the closest practical synonym is seat of government. Other senses have different synonyms, such as capital letter for the writing sense and working capital for the finance sense.

Does capital always mean money?

No. Capital can mean money or assets used in business, but it can also mean a government city, a capital letter, or several older adjective senses.

Is capital the same as uppercase?

Sometimes. Capital can refer to a capital letter, and capital letters are uppercase letters.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-09. AI assessment; not a guarantee of accuracy.