Monmouthshire

American

[mon-muhth-sheer, -sher] / ˈmɒn məθˌʃɪər, -ʃər /

noun

a county in eastern Wales. 330 sq. mi. (850 sq. km).

Monmouthshire British

/ ˈmɒnməθˌʃɪə, -ʃə /

noun

a county of E Wales: administratively part of England for three centuries (until 1830); mainly absorbed into the county of Gwent in 1974; reinstated with reduced boundaries in 1996: chiefly agricultural, with the Black Mountains in the N. Administrative centre: Cwmbran. Pop: 86 200 (2003 est). Area: 851 sq km (329 sq miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Monmouthshire

Monmouth ( def. ) + shire ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The landslip happened below the lane between Cwmyoy and Llanthony, in Monmouthshire, on 30 January, causing a vertical drop immediately next to the road.

From BBC • Mar. 3, 2026

Monmouthshire County Council has set up a dedicated webpage to update people on the situation.

From BBC • Mar. 3, 2026

He said Malaysia was "really fun" and he enjoyed visiting waterfalls and waterparks, while also doing school work sent from Monmouthshire.

From BBC • Feb. 6, 2026

There was a big welcome for the actor when he returned back to school in Monmouthshire.

From BBC • Feb. 6, 2026

Unlike Darwin—gentleman biologist, and soon to be England’s most lauded natural historian—Wallace had been born to a middle-class family in Monmouthshire.

From "The Gene" by Siddhartha Mukherjee

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023