TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: Y Swyddfa Archwilio Genedlaethol
English: National Audit Office
Status A
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Definition: NAO
Last updated: 6 June 2002
Welsh: Y Swyddfa Batentau
English: Patent Office
Status C
Subject: Economic development
Part of speech: Noun, Feminine, Singular
Last updated: 31 August 2004
Welsh: Y Swyddfa Cerbydau Di-allyriadau
English: Office for Zero Emission Vehicles
Status B
Subject: Transport
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar enw corff nad oes ganddo ffurf swyddogol Gymraeg.
Last updated: 22 December 2022
Welsh: Y Swyddfa Cyflawni Prosiectau
English: Office for Project Delivery
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Masculine, Singular
Last updated: 31 March 2022
Welsh: Y Swyddfa Cyflawni Prosiectau Strategol
English: Strategic Project Delivery Office
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Masculine, Singular
Last updated: 5 February 2026
Welsh: Y Swyddfa Cyfrifoldeb Cyllidebol
English: Office for Budget Responsibility
Status C
Subject: Finance and statistics
Part of speech: Proper noun, Feminine, Singular
Definition: OBR
Context: Teitl cwrteisi.
Last updated: 17 October 2012
Welsh: Y Swyddfa Cyfrifoldeb Cyllidebol
English: OBR
Status C
Subject: Finance and statistics
Part of speech: Proper noun, Feminine, Singular
Definition: Office for Budget Responsibility
Context: Teitl cwrteisi.
Last updated: 16 May 2013
Welsh: Y Swyddfa Ddeddfwriaeth
English: Legislation Office
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Definition: Assembly Commission
Last updated: 3 April 2008
Welsh: Y Swyddfa Draffig
English: Traffic Office
Status A
Subject: Education
Part of speech: Noun, Feminine, Singular
Context: Apprenticeship learning pathway.
Last updated: 31 October 2012
Welsh: Y Swyddfa Dramor a Chymanwlad
English: FCO
Status A
Subject: Politics
Part of speech: Noun, Feminine, Singular
Definition: Foreign and Commonwealth Office
Last updated: 1 December 2003
Welsh: Y Swyddfa Dramor a Chymanwlad
English: Foreign and Commonwealth Office
Status A
Subject: Politics
Part of speech: Noun, Feminine, Singular
Definition: FCO (Westminster)
Last updated: 17 June 2003
Welsh: Y Swyddfa Dramor, y Gymanwlad a Datblygu
English: Foreign, Commonwealth and Development Office
Status B
Subject: Politics
Part of speech: Noun, Feminine, Singular
Last updated: 12 November 2020
Welsh: Y Swyddfa dros Fynediad Teg
English: Office for Fair Access
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Last updated: 29 July 2004
Welsh: Y Swyddfa dros Wyddoniaeth a Thechnoleg
English: Office for Science and Technology
Status C
Subject: Europe
Part of speech: Noun, Feminine, Singular
Definition: Llywodraeth y DU
Last updated: 29 July 2004
Welsh: Y Swyddfa dros Wyddoniaeth a Thechnoleg
English: Office of Science and Technology
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: OST
Last updated: 22 July 2010
Welsh: Y Swyddfa dros Wyddoniaeth a Thechnoleg
English: OST
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: Office of Science and Technology
Last updated: 22 July 2010
Welsh: Y Swyddfa Dywydd
English: Met Office
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 29 September 2005
Welsh: Y Swyddfa Fesur Wladol
English: National Measurement Office 
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: NMO.
Context: UK enforcing authority for the RoHS Regulations
Last updated: 25 March 2010
Welsh: Y Swyddfa Fesur Wladol
English: NMO
Status A
Subject: Environment
Part of speech: Proper noun, Feminine, Singular
Definition: National Measurement Office
Context: Ensures fair and accurate measurements are available and used for transations regulated by law.
Last updated: 25 March 2010
Welsh: Y Swyddfa Fesur Wladol
English: National Measurement Office
Status A
Subject: Environment
Part of speech: Proper noun, Feminine, Singular
Definition: NMO.
Context: Ensures fair and accurate measurements are available and used for transations regulated by law.
Last updated: 25 March 2010
Welsh: Y Swyddfa Fyfyrwyr
English: The Office for Students
Status B
Subject: Education
Part of speech: Noun, Feminine, Singular
Notes: Cyfieithiad cwrteisi o enw corff nad oes ffurf Gymraeg swyddogol arni. Yn Lloegr yn unig y mae’r corff hwn yn gweithredu.
Last updated: 1 August 2018
Welsh: Y Swyddfa Gadwraeth Genedlaethol
English: National Preservation Office
Status C
Subject: Culture and the arts
Part of speech: Noun, Feminine, Singular
Definition: NPO
Last updated: 30 March 2006
Welsh: Y Swyddfa Gadwraeth Genedlaethol
English: NPO
Status C
Subject: Culture and the arts
Part of speech: Noun, Feminine, Singular
Definition: National Preservation Office
Last updated: 30 March 2006
Welsh: Y Swyddfa Gartref
English: Home Office
Status A
Subject: Politics
Part of speech: Noun, Feminine, Singular
Definition: Westminster
Last updated: 17 June 2003
Welsh: Y Swyddfa Genedlaethol Gofal a Chymorth
English: National Office for Care and Support
Status A
Subject: Social services
Part of speech: Noun, Feminine, Singular
Last updated: 14 March 2024
Welsh: Y Swyddfa Gwaith Teg
English: Office of Fair Work
Status B
Subject: Economic development
Part of speech: Noun, Feminine, Singular
Last updated: 11 July 2019
Welsh: Y Swyddfa Gwasanaethau Dŵr
English: Office of Water Services
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Ofwat
Last updated: 4 January 2006
Welsh: Y Swyddfa Gyfathrebiadau
English: Office of Communications
Status A
Subject: ICT
Part of speech: Noun, Feminine, Singular
Definition: Ofcom
Last updated: 27 April 2006
Welsh: Y Swyddfa Hysbysrwydd Ganolog
English: Central Office of Information
Status A
Subject: Personnel
Part of speech: Noun, Feminine, Singular
Definition: COI
Context: Closed down in 2012.
Last updated: 15 August 2005
Welsh: Y Swyddfa Hysbysrwydd Ganolog
English: COI
Status C
Subject: Politics
Part of speech: Noun, Feminine, Singular
Definition: Central Office of Information
Context: Closed down in 2012.
Last updated: 15 August 2005
Welsh: Y Swyddfa Iechyd Galwedigaethol
English: Occupational Health Office
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Last updated: 19 March 2003
Welsh: Y Swyddfa Masnachu Teg
English: Office of Fair Trading
Status A
Subject: Economic development
Part of speech: Proper noun, Feminine, Singular
Definition: OFT
Context: Replaced by the Competition and Markets Authority in 2014.
Last updated: 13 May 2004
Welsh: Y Swyddfa Reoleiddio Niwclear
English: Office for Nuclear Regulation
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 23 March 2021
Welsh: Y Swyddfa Reoleiddio Niwclear
English: ONR
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am Office for Nuclear Regulation.
Last updated: 23 March 2021
Welsh: Y Swyddfa Rheilffyrdd a Ffyrdd
English: Office of Rail and Road
Status A
Subject: Transport
Part of speech: Noun, Feminine, Singular
Last updated: 3 December 2025
Welsh: Y Swyddfa Rheilffyrdd a Ffyrdd
English: ORR
Status A
Subject: Transport
Part of speech: Noun, Feminine, Singular
Notes: Dyma’r acronym Saesneg a ddefnyddir am Office of Rail and Road.
Last updated: 3 December 2025
Welsh: Y Swyddfa Rheolaeth Gyhoeddus
English: Office for Public Management
Status A
Subject: Politics
Part of speech: Proper noun, Feminine, Singular
Definition: OPM
Last updated: 12 May 2006
Welsh: Y Swyddfa Rheolaeth Gyhoeddus
English: OPM
Status A
Subject: Politics
Part of speech: Proper noun, Feminine, Singular
Definition: Office for Public Management
Last updated: 12 May 2006
Welsh: Y Swyddfa Rheoleiddio Ystadegau
English: Office for Statistics Regulation
Status B
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Last updated: 24 November 2025
Welsh: Y Swyddfa Rheoleiddio Ystadegau
English: OSR
Status B
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am Office for Statistics Regulation.
Last updated: 24 November 2025
Welsh: Y Swyddfa Rheoliadau Telathrebu
English: Office of Telecommunications
Status A
Subject: ICT
Part of speech: Noun, Feminine, Singular
Definition: Oftel
Last updated: 2 September 2004
Welsh: Y Swyddfa Safonau mewn Addysg, Gwasanaethau Plant a Sgiliau
English: Office for Standards in Education, Children’s Services and Skills
Status B
Subject: Education
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r teitl llawn ar Ofsted, un o asiantaethau Llywodraeth y DU.
Last updated: 23 October 2025
Welsh: Y Swyddfa Ymchwiliadau Ymddygiad Barnwrol
English: Judicial Conduct Investigations Office
Status B
Subject: Justice and order
Part of speech: Noun, Feminine, Singular
Last updated: 2 May 2024
Welsh: Y Swyddfa Ystadegau Gwladol
English: Office for National Statistics
Status A
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Definition: ONS
Last updated: 1 June 2005
Welsh: Y Swyddog Cyswllt a fydd yn Awdurdodi'r Prosiect
English: Authorising Contact
Status C
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Definition: Yng nghyd-destun WEFO Ar-lein a chofrestru busnesau (Business Party Registration) etc er mwyn iddynt ddefnyddio'r system.
Last updated: 10 July 2008
Welsh: y synnwyr festibwlar
English: vestibular sense
Status A
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Un o'r synhwyrau, sef y synnwyr o gydbwysedd, cyflymder a chyfeiriad.
Last updated: 9 January 2020
Welsh: Y System Ddata Amlasiantaeth Genedlaethol ar gyfer Rheoli Troseddwyr
English: National Offender Management Multi Agency Data System
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 25 March 2021
Welsh: Y System Ddata Amlasiantaeth Genedlaethol ar gyfer Rheoli Troseddwyr
English: NOMADS
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am y National Offender Management Multi Agency Data System
Last updated: 25 March 2021
Welsh: Y System Ddiogel
English: Safe System
Status B
Subject: Transport
Part of speech: Noun, Feminine, Singular
Definition: Ymagwedd at reoli diogelwch ar y ffyrdd, sydd wedi ei seilio ar yr egwyddor na ddylid cyfaddawdu ar fywyd ac iechyd yn sgil yr angen i deithio.
Last updated: 8 December 2022
Welsh: Y System Ewropeaidd ar gyfer Gwybodaeth am Deithio ac Awdurdodi Teithio
English: European Travel Information and Authorisation System
Status A
Subject: Europe
Part of speech: Noun, Feminine, Singular
Definition: System electronig ar gyfer caniatáu ac olrhain ymwelwyr o wledydd nad oes angen fisa arnynt i fynd i mewn i'r Ardal Schengen.
Last updated: 10 June 2021