commonwealth

noun

com·​mon·​wealth ˈkä-mən-ˌwelth 

 also  -ˌweltth

1

: a nation, state, or other political unit: such as

a

: one founded on law and united by compact or tacit agreement of the people for the common good

b

: one in which supreme authority is vested in the people

c

: republic

2

: a state of the U.S.

—used officially of Kentucky, Massachusetts, Pennsylvania, and Virginia

3

often capitalized : a political unit having local autonomy but voluntarily united with the U.S.

—used officially of Puerto Rico and of the Northern Mariana Islands

4

often capitalized : an association of self-governing autonomous states more or less loosely associated in a common allegiance (as to the British crown)

5

capitalized

a

: the English state from the death of Charles I in 1649 to the Restoration in 1660

b

: protectorate sense 1b

6

capitalized : a federal union of constituent states

—used officially of Australia

7

archaic : commonweal sense 2

Synonyms

• country
• land
• nation
• sovereignty
• sovranty
• state

Examples of commonwealth in a Sentence

laws that will benefit all the citizens of the commonwealth

Recent Examples on the Web

Of course, the state’s senators, representatives and governor conduct the commonwealth’s business here. —Kim Foley MacKinnon, Forbes, 3 Jan. 2025

Matthew Bratcher, executive director of Kentucky NORML, a cannabis advocacy organization, said employers in the commonwealth are still able to enforce drug-free workplace policies, including testing for THC. —Marina Johnson, The Enquirer, 1 Jan. 2025

Those businesses will operate in areas across the commonwealth. —Killian Baarlaer, The Courier-Journal, 30 Dec. 2024

Democrats are gearing up for two northern Virginia-area special elections in the state Senate and House of Delegates next month that could set the tone for what is expected to be a consequential election year in the commonwealth. —Julia Manchester, The Hill, 24 Dec. 2024

Word History

First Known Use

15th century, in the meaning defined at sense 7

Kids Definition

commonwealth

noun

com·​mon·​wealth -ˌwelth 

1

: a political unit (as a nation or state)

2

: a state of the U.S.

—used officially of Kentucky, Massachusetts, Pennsylvania, and Virginia

Legal Definition

commonwealth

noun

com·​mon·​wealth ˈkä-mən-ˌwelth 

1

: a nation, state, or other political unit: as

a

: one founded on law and united by compact or tacit agreement by the people for the common good

b

: one in which supreme authority is vested in the people

c

: republic

2

: a state of the U.S.

—used officially of Kentucky, Massachusetts, Pennsylvania, and Virginia

3

often capitalized : an association of self-governing autonomous states more or less loosely associated in a common allegiance (as to the British crown)

4

often capitalized : a political unit having local autonomy but voluntarily united with the U.S.

—used officially of Puerto Rico and the Northern Mariana Islands