TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: Yr Is-grofft
English: Undercroft
Status A
Subject: Estates and Cadw
Part of speech: Noun, Feminine, Singular
Definition: An undercroft is traditionally a cellar or storage room, often brick-lined and vaulted, and used for storage in buildings since medieval times
Notes: Dyma'r enw a ddefnyddir yng Nghastell Caerdydd
Last updated: 4 June 2018
Welsh: Yr Is-grofft
English: Undercroft
Status A
Subject: Estates and Cadw
Part of speech: Noun, Feminine, Singular
Definition: An undercroft is traditionally a cellar or storage room, often brick-lined and vaulted, and used for storage in buildings since medieval times
Notes: Dyma'r enw a ddefnyddir yng Nghastell Caerdydd
Last updated: 4 June 2018
Welsh: Yr Is-grŵp ar Hysbysu am Risg a Deall Ymddygiad
English: Risk Communication and Behavioural Insight subgroup
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 3 September 2020
Welsh: Yr Is-grŵp ar Hysbysu am Risg a Deall Ymddygiad
English: Risk Communication and Behavioural Insight subgroup
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Last updated: 3 September 2020
Welsh: Yr Is-grŵp Cyfathrebu
English: Communication Sub-group
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 21 January 2008
Welsh: Yr Is-grŵp Cyfathrebu
English: Communication Sub-group
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 21 January 2008
Welsh: Yr Is-grŵp Dosbarthu
English: Distribution Sub-group
Status A
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Notes: Corff sy'n cynghori Llywodraeth Cymru ynghylch faint o gyllid refeniw y dylai pob awdurdod lleol ei dderbyn.
Last updated: 18 May 2023
Welsh: Yr Is-grŵp Dosbarthu
English: Distribution Sub-group
Status A
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Notes: Corff sy'n cynghori Llywodraeth Cymru ynghylch faint o gyllid refeniw y dylai pob awdurdod lleol ei dderbyn.
Last updated: 18 May 2023
Welsh: Yr Is-grŵp Gostwng Allyriadau
English: Emission Reduction Sub-group
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 21 January 2008
Welsh: Yr Is-grŵp Gostwng Allyriadau
English: Emission Reduction Sub-group
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 21 January 2008
Welsh: Yr Is-grŵp Gweithredu Gofal Cymdeithasol
English: Social Care Implementation Sub-group  
Status C
Subject: Social services
Part of speech: Noun, Masculine, Singular
Notes: Un o is-grwpiau Grŵp Cynghorol Iechyd BAME Cymru ar COVID-19.
Last updated: 25 June 2020
Welsh: Yr Is-grŵp Gweithredu Gofal Cymdeithasol
English: Social Care Implementation Sub-group  
Status C
Subject: Social services
Part of speech: Noun, Masculine, Singular
Notes: Un o is-grwpiau Grŵp Cynghorol Iechyd BAME Cymru ar COVID-19.
Last updated: 25 June 2020
Welsh: Yr Is-grŵp Ymaddasu
English: Adaptation Sub-Group
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Rhan o Gomisiwn Cymru ar y Newid yn yr Hinsawdd.
Last updated: 7 November 2011
Welsh: Yr Is-grŵp Ymaddasu
English: Adaptation Sub-Group
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Rhan o Gomisiwn Cymru ar y Newid yn yr Hinsawdd.
Last updated: 7 November 2011
Welsh: Yr Is-grŵp Ymchwil, Methodoleg a'r Economi
English: Research, Methodology and Economics Sub-group
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 21 January 2008
Welsh: Yr Is-grŵp Ymchwil, Methodoleg a'r Economi
English: Research, Methodology and Economics Sub-group
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last updated: 21 January 2008
Welsh: Yr Is-Ysgrifennydd Gwladol Seneddol dros Ddigartrefedd a Democratiaeth
English: Parliamentary Under-Secretary of State for Homelessness and Democracy
Status B
Subject: Politics
Part of speech: Noun, Masculine, Singular
Notes: Cyfieithiad cwrteisi ar deitl swydd yn Llywodraeth y DU.
Last updated: 18 June 2025
Welsh: Yr Is-Ysgrifennydd Gwladol Seneddol dros Ddigartrefedd a Democratiaeth
English: Parliamentary Under-Secretary of State for Homelessness and Democracy
Status B
Subject: Politics
Part of speech: Noun, Masculine, Singular
Notes: Cyfieithiad cwrteisi ar deitl swydd yn Llywodraeth y DU.
Last updated: 18 June 2025
Welsh: yr ên a’r wyneb
English: maxillofacial
Status C
Subject: Health
Part of speech: Adjective
Last updated: 3 November 2020
Welsh: yr ên a’r wyneb
English: maxillofacial
Status C
Subject: Health
Part of speech: Adjective
Last updated: 3 November 2020
Welsh: Yr Oes Efydd
English: Bronze Age
Status C
Subject: Estates and Cadw
Part of speech: Noun, Feminine, Singular
Last updated: 17 October 2005
Welsh: Yr Oes Efydd
English: Bronze Age
Status C
Subject: Estates and Cadw
Part of speech: Noun, Feminine, Singular
Last updated: 17 October 2005
Welsh: Yr Offeryn Adolygu Marwolaethau Amenedigol Cenedlaethol  
English: National Perinatal Mortality Review Tool  
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Teitl cwrteisi ar gynllun Lloegr a weithredir yng Nghymru hefyd
Last updated: 5 May 2022
Welsh: Yr Offeryn Adolygu Marwolaethau Amenedigol Cenedlaethol  
English: National Perinatal Mortality Review Tool  
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Notes: Teitl cwrteisi ar gynllun Lloegr a weithredir yng Nghymru hefyd
Last updated: 5 May 2022
Welsh: Yr Offeryn Statudol Adalw am Gyfnod Penodol
English: FTR-SI
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am Fixed-Term Recall Statutory Instrument.
Last updated: 5 March 2025
Welsh: Yr Offeryn Statudol Adalw am Gyfnod Penodol
English: Fixed-Term Recall Statutory Instrument
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r enw annhechnegol a ddefnyddir am The Criminal Justice Act 2003 (Suitability for Fixed Term Recall) Order 2024 / Gorchymyn Deddf Cyfiawnder Troseddol 2003 (Addasrwydd ar gyfer Adalw am Gyfnod Penodol) 2024.
Last updated: 5 March 2025
Welsh: Yr Offeryn Statudol Adalw am Gyfnod Penodol
English: FTR-SI
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am Fixed-Term Recall Statutory Instrument.
Last updated: 5 March 2025
Welsh: Yr Offeryn Statudol Adalw am Gyfnod Penodol
English: Fixed-Term Recall Statutory Instrument
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Notes: Dyma'r enw annhechnegol a ddefnyddir am The Criminal Justice Act 2003 (Suitability for Fixed Term Recall) Order 2024 / Gorchymyn Deddf Cyfiawnder Troseddol 2003 (Addasrwydd ar gyfer Adalw am Gyfnod Penodol) 2024.
Last updated: 5 March 2025
Welsh: Yr Olympiad Diwylliannol yng Nghymru
English: Cultural Olympiad in Wales
Status A
Subject: Culture and the arts
Part of speech: Noun, Masculine, Singular
Last updated: 21 June 2010
Welsh: Yr Olympiad Diwylliannol yng Nghymru
English: Cultural Olympiad in Wales
Status A
Subject: Culture and the arts
Part of speech: Noun, Masculine, Singular
Last updated: 21 June 2010
Welsh: Yr Ombwdsmon Carchardai a Phrofiannaeth
English: Prisons and Probation Ombudsman
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Notes: Dyma’r teitl byr ar y Prisons and Probation Ombudsman for England and Wales / Ombwdsmon Carchardai a Phrofiannaeth Cymru a Lloegr.
Last updated: 13 October 2016
Welsh: Yr Ombwdsmon Carchardai a Phrofiannaeth
English: Prisons and Probation Ombudsman
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Notes: Dyma’r teitl byr ar y Prisons and Probation Ombudsman for England and Wales / Ombwdsmon Carchardai a Phrofiannaeth Cymru a Lloegr.
Last updated: 13 October 2016
Welsh: Yr Ombwdsmon Seneddol a Gwasanaeth Iechyd
English: Parliamentary and Health Service Ombudsman
Status B
Subject: Politics
Part of speech: Masculine, Singular
Notes: Dyma a ddefnyddir yn Gymraeg gan yr Ombwdsmon ei hun.
Last updated: 18 November 2021
Welsh: Yr Ombwdsmon Seneddol a Gwasanaeth Iechyd
English: Parliamentary and Health Service Ombudsman
Status B
Subject: Politics
Part of speech: Masculine, Singular
Notes: Dyma a ddefnyddir yn Gymraeg gan yr Ombwdsmon ei hun.
Last updated: 18 November 2021
Welsh: yr opsiwn datgysylltiedig
English: decoupled option
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Yr opsiwn sy’n dileu’r cysylltiad â chynnyrch neu gynhyrchiant (Termau Amaeth Ewrop).
Last updated: 6 August 2008
Welsh: yr opsiwn datgysylltiedig
English: decoupled option
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Yr opsiwn sy’n dileu’r cysylltiad â chynnyrch neu gynhyrchiant (Termau Amaeth Ewrop).
Last updated: 6 August 2008
Welsh: Yr Orsedd
English: Rossett
Status C
Subject: Place-names
Part of speech: Proper noun
Last updated: 9 July 2013
Welsh: Yr Orsedd
English: Rossett
Status C
Subject: Place-names
Part of speech: Proper noun
Last updated: 9 July 2013
Welsh: Yr Orsedd
English: Rossett
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Wrecsam. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Wrecsam (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: Yr Orsedd
English: Rossett
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Ward etholiadol ym Mwrdeistref Sirol Wrecsam. Dyma'r enwau a ragnodwyd yn Gymraeg a Saesneg ar gyfer y ward yng Ngorchymyn Bwrdeistref Sirol Wrecsam (Trefniadau Etholiadol) 2021.
Last updated: 17 August 2022
Welsh: yr Osgordd Frenhinol
English: Royal Household
Status B
Subject: Honorary titles
Part of speech: Noun, Feminine, Singular
Last updated: 9 October 2024
Welsh: yr Osgordd Frenhinol
English: Royal Household
Status B
Subject: Honorary titles
Part of speech: Noun, Feminine, Singular
Last updated: 9 October 2024
Welsh: y rownd Estyn a Gwella
English: Extension and Enhancement round
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Context: Rural Development Plan
Last updated: 25 November 2014
Welsh: y rownd Estyn a Gwella
English: Extension and Enhancement round
Status C
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Context: Rural Development Plan
Last updated: 25 November 2014
Welsh: yr Undeb Addysg Cenedlaethol
English: the National Education Union
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Context: Mae’r Undebau hynny wedi uno bellach i greu undeb newydd sef yr Undeb Addysg Cenedlaethol.
Notes: Undeb a grewyd yn sgil uno Undeb Cenedlaethol yr Athrawon a Chymdeithas yr Athrawon a'r Darlithwyr.
Last updated: 12 July 2018
Welsh: yr Undeb Addysg Cenedlaethol
English: the National Education Union
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Context: Mae’r Undebau hynny wedi uno bellach i greu undeb newydd sef yr Undeb Addysg Cenedlaethol.
Notes: Undeb a grewyd yn sgil uno Undeb Cenedlaethol yr Athrawon a Chymdeithas yr Athrawon a'r Darlithwyr.
Last updated: 12 July 2018
Welsh: Yr Undeb Amddiffyn Meddygol
English: Medical Defence Union
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Context: Rydym wedi datgan ein hawydd erioed i ddod i gytundeb â phob un o'r tri phrif sefydliad amddiffyn meddygol ac rydym yn gobeithio gallu dod i gytundeb boddhaol â'r Undeb Amddiffyn Meddygol
Last updated: 12 March 2020
Welsh: Yr Undeb Amddiffyn Meddygol
English: Medical Defence Union
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Context: Rydym wedi datgan ein hawydd erioed i ddod i gytundeb â phob un o'r tri phrif sefydliad amddiffyn meddygol ac rydym yn gobeithio gallu dod i gytundeb boddhaol â'r Undeb Amddiffyn Meddygol
Last updated: 12 March 2020
Welsh: Yr Undeb Ewropeaidd
English: European Union
Status A
Subject: Europe
Part of speech: Noun, Masculine, Singular
Definition: EU
Last updated: 16 August 2002
Welsh: Yr Undeb Ewropeaidd
English: European Union
Status A
Subject: Europe
Part of speech: Noun, Masculine, Singular
Definition: EU
Last updated: 16 August 2002