Caerphilly

American  

[kair-fil-ee] / kɛərˈfɪl i /

noun

1. a county in southeastern Wales. 107 sq. mi. (278 sq. km).

2. a town in the county of Caerphilly, in southeastern Wales.

3. Also called Caerphilly cheese.  a mild, white, crumbly, medium-hard cheese, originally made in Wales.

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Caerphilly British  

/ kɛəˈfɪlɪ /

noun

1. a market town in SE Wales, in Caerphilly county borough: site of the largest castle in Wales (13th–14th centuries). Pop: 31 060 (2001)

2. a county borough in SE Wales, created in 1996 from parts of Mid Glamorgan and Gwent. Pop: 170 200 (2003 est). Area: 275 sq km (106 sq miles)

3. a creamy white mild-flavoured cheese

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Etymology

Origin of Caerphilly

From place name Caerphilly, from Welsh Caerffili “Fort of Ffili,” equivalent to caer “fort” + “(St.) Ffili”

Example Sentences

Reform Blaenau Gwent Caerffili Rhymni MS Llŷr Powell, runner-up to Plaid Cymru in last October's Caerphilly by-election, said his party intended to "add a higher level of scrutiny" to Cardiff Bay proceedings.

From BBC • May 10, 2026

Rising prices are also an issue for mum-of-two Sara Davies from Caerphilly.

From BBC • May 5, 2026

Ashley Comley, from Caerphilly Blaenau Gwent Citizen's Advice, said: "The cost of living issue had been bubbling away for people for many years now."

From BBC • May 5, 2026

Hannah Jones, owner of tyre fitting business DJ tyres in Caerphilly, said her garage was getting "busier and busier" with more cars coming in due to potholes and roads affected by the weather.

From BBC • Mar. 15, 2026

Cyphering at night, piling up stones by day, rambling off to Caerphilly Castle when you should be at work—what sort of labour do you call that?'

From The Making of William Edwards or The Story of the Bridge of Beauty by Banks, Mrs. G. Linnaeus