TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: deddf
English: act
Status A
Subject: Law
Part of speech: Noun, Feminine, Singular
Plural: deddfau
Notes: Gweler y cofnodion am fathau penodol o ddeddfau, fel Deddfau Seneddol, Deddfau'r Cynulliad, ac ati.
Last updated: 28 December 2017
Welsh: Deddf Achosion Priodasol 1973
English: Matrimonial Causes Act 1973
Status A
Subject: Titles of legislation
Part of speech: Proper noun, Feminine, Singular
Last updated: 13 February 2003
Welsh: Deddf Achosion Priodasol a Theuluol 1984
English: Matrimonial and Family Proceedings Act 1984
Status A
Subject: Titles of legislation
Part of speech: Proper noun, Feminine, Singular
Notes: Teitl cwrteisi Cymraeg ar Ddeddf nad oes fersiwn Gymraeg ohoni.
Last updated: 3 October 2018
Welsh: Deddf Achosion Troseddol etc. (Diwygio) (Yr Alban) 2007
English: Criminal Proceedings etc. (Reform) (Scotland) Act 2007
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 25 November 2025
Welsh: Deddf Adalw Aelodau Seneddol 2015
English: Recall of MPs Act 2015
Status B
Subject: Politics
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 4 December 2025
Welsh: Deddf Ad-drefnu'r Gwasanaeth Iechyd Gwladol 1973
English: National Health Service Reorganisation Act 1973
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Last updated: 15 July 2005
Welsh: Deddf Addysg 1996
English: Education Act 1996
Status A
Subject: Education
Part of speech: Noun, Feminine, Singular
Last updated: 1 December 2003
Welsh: Deddf Addysg 2002
English: The Education Act 2002
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 27 June 2019
Welsh: Deddf Addysg ac Arolygiadau 2006
English: Education and Inspections Act 2006
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 13 December 2021
Welsh: Deddf Addysg Bellach ac Uwch 1992
English: Further and Higher Education Act 1992
Status C
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 7 March 2008
Welsh: Deddf Addysg Bellach ac Uwch (Llywodraethu a Gwybodaeth) (Cymru) 2014
English: Further and Higher Education (Governance and Information) (Wales) Act 2014
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r teitl swyddogol ar y Ddeddf hon. Sylwer nad yw'r defnydd o 'llywodraethu' yn y teitl hwn yn gyson ag arferion Llywodraeth Cymru bellach wrth drosi'r gair 'governance'. Gweler y cofnod am 'governance'.
Last updated: 8 May 2025
Welsh: Deddf Addysg Bellach a Hyfforddi 2007
English: Further Education and Training Act 2007
Status C
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 28 September 2009
Welsh: Deddf Addysg (Cymru) 2014
English: Education (Wales) Act 2014
Status A
Subject: Titles of legislation
Part of speech: Proper noun, Feminine, Singular
Last updated: 14 May 2013
Welsh: Deddf Addysg Drydyddol ac Ymchwil (Cymru) 2022
English: Tertiary Education and Research (Wales) Act 2022
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 29 November 2023
Welsh: Deddf Addysgu ac Addysg Uwch 1998
English: Teaching and Higher Education Act 1998
Status C
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 27 October 2006
Welsh: Deddf Addysg Uwch (Cymru) 2015
English: Higher Education (Wales) Act 2015
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 16 March 2015
Welsh: Deddf Adeiladau Hanesyddol a Henebion 1953
English: Historic Buildings and Ancient Monuments Act 1953
Status C
Subject: Estates and Cadw
Part of speech: Noun, Feminine, Singular
Last updated: 5 June 2006
Welsh: Deddf Adeiladau Seneddol (Adfer ac Adnewyddu) 2019
English: Parliamentary Buildings (Restoration and Renewal) Act 2019
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 13 December 2021
Welsh: Deddf Adnoddau Dŵr 1991
English: Water Resources Act 1991
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 1 October 2020
Welsh: Deddf Adran y Trysorlys a'r Adran Archwilio 1921
English: Ecchequer and Audit Departments Act 1921
Status A
Subject: Titles of legislation
Part of speech: Proper noun, Feminine, Singular
Last updated: 28 May 2014
Welsh: Deddf Adran y Trysorlys a'r Adran Archwilio 1921
English: Exchequer and Audit Departments Act 1921
Status A
Subject: Titles of legislation
Part of speech: Proper noun, Feminine, Singular
Last updated: 28 May 2014
Welsh: Deddf Adsefydlu Troseddwyr
English: Rehabilitation of Offenders Act
Status B
Subject: Justice and order
Part of speech: Noun, Feminine, Singular
Last updated: 30 August 2012
Welsh: Deddf Adsefydlu Troseddwyr 1974
English: Rehabilitation of Offenders Act 1974
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Context: Teitl cwrteisi.
Last updated: 5 June 2015
Welsh: Deddf Aer Glân 1956
English: Clean Air Act 1956
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Context: Sbardunodd hyn y ddeddfwriaeth gyntaf ar gyfer llygredd aer, Deddf Aer Glân 1956, a oedd yn gwahardd allyriadau mwg du.
Notes: Teitl cwrteisi ar ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 16 September 2024
Welsh: Deddf Aer Glân 1993
English: Clean Air Act 1993
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 19 May 2005
Welsh: Deddf Ailgylchu Gwastraff Cartrefi 2003
English: Household Waste Recycling Act 2003
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 13 October 2004
Welsh: Deddf Alcohol (Isafbris) (Yr Alban) 2012
English: Alcohol (Minimum Pricing) (Scotland) Act 2012
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 29 December 2017
Welsh: Deddf alluogi
English: enabling Act
Status C
Subject: Law
Part of speech: Noun, Feminine, Singular
Last updated: 3 November 2011
Welsh: Deddf Amaethyddiaeth 1947
English: Agriculture Act 1947
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 1 October 2020
Welsh: Deddf Amaethyddiaeth 1967
English: Agriculture Act 1967
Status C
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 1 October 2012
Welsh: Deddf Amaethyddiaeth (Cymru) 2023
English: Agriculture (Wales) Act 2023
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 29 November 2023
Welsh: Deddf Amddiffyn Plant 1999
English: Protection of Children Act 1999
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Definition: POCA
Last updated: 8 December 2004
Welsh: Deddf Amddiffyn Plant 1999
English: POCA
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Definition: Protection of Children Act 1999
Last updated: 21 June 2011
Welsh: Deddf Amddiffyn y Glannau 1949
English: Coast Protection Act 1949
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last updated: 24 September 2002
Welsh: Deddf Amrywogaethau Planhigion 1997
English: The Plant Varieties Act 1997
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 6 December 2018
Welsh: Deddf Amrywogaethau Planhigion a Hadau 1964
English: Plant Varieties and Seeds Act 1964
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 15 August 2024
Welsh: Deddf Anghenion Addysgol Arbennig ac Anabledd 2001
English: SENDA
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: Special Educational Needs and Disability Act 2001
Notes: Gweler yr erthygl ar y Model Cymdeithasol o Anabledd yn yr Arddulliadur. Yn unol â'r Model, mae amhariad ("impairment", a elwid yn "nam" o'r blaen) yn nodwedd ar berson, a all effeithio ar ei ymddangosiad neu ar sut y mae ei gorff neu ei feddwl yn gweithio; caiff pobl anabl (y gellir hefyd cyfeirio atynt fel "pobl anabledig" neu "bobl sy'n cael eu hanablu") eu hanablu gan ffactorau allanol fel yr amgylchedd, polisi neu arferion, neu yn sgil methiant i ddarparu addasiadau ar eu cyfer; ac anabledd yw canlyniad anablu pobl sydd ag amhariadau. 
Last updated: 14 November 2023
Welsh: Deddf Anghenion Addysgol Arbennig ac Anabledd 2001
English: Special Educational Needs and Disability Act 2001
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: SENDA
Notes: Gweler yr erthygl ar y Model Cymdeithasol o Anabledd yn yr Arddulliadur. Yn unol â'r Model, mae amhariad ("impairment", a elwid yn "nam" o'r blaen) yn nodwedd ar berson, a all effeithio ar ei ymddangosiad neu ar sut y mae ei gorff neu ei feddwl yn gweithio; caiff pobl anabl (y gellir hefyd cyfeirio atynt fel "pobl anabledig" neu "bobl sy'n cael eu hanablu") eu hanablu gan ffactorau allanol fel yr amgylchedd, polisi neu arferion, neu yn sgil methiant i ddarparu addasiadau ar eu cyfer; ac anabledd yw canlyniad anablu pobl sydd ag amhariadau. 
Last updated: 14 November 2023
Welsh: Deddf Anghenion Dysgu Ychwanegol a’r Tribiwnlys Addysg (Cymru) 2018
English: ALNET
Status B
Subject: Education
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r acronym a ddefnyddir yn gyffredin yn Saesneg am enw'r Ddeddf.
Last updated: 22 October 2020
Welsh: Deddf Anghenion Dysgu Ychwanegol a’r Tribiwnlys Addysg (Cymru) 2018
English: Additional Learning Needs and Education Tribunal (Wales) Act 2018
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 6 September 2021
Welsh: Deddf Anghymhwyso Tŷ'r Cyffredin 1975
English: House of Commons Disqualification Act 1975
Status C
Subject: Law
Part of speech: Noun, Feminine, Singular
Last updated: 20 May 2005
Welsh: Deddf Anifeiliaid 1971
English: Animals Act 1971
Status A
Subject: Titles of legislation
Part of speech: Proper noun, Feminine, Singular
Context: Teitl cwrteisi.
Last updated: 27 February 2014
Welsh: Deddf Anifeiliaid a Bywyd Gwyllt (Cosbau, Diogeliadau a Phwerau) (Yr Alban) 2020
English: Animals and Wildlife (Penalties, Protections and Powers) (Scotland) Act 2020
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 13 December 2021
Welsh: Deddf Anifeiliaid Dinistriol a Fewnforir 1932
English: Destructive Imported Animals Act 1932
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 6 December 2018
Welsh: Deddf Anifeiliaid Gwyllt a Syrcasau (Cymru) 2020
English: Wild Animals and Circuses (Wales) Act 2020
Status A
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Last updated: 6 September 2021
Welsh: Deddf Anifeiliaid Gwyllt mewn Syrcasau 2019
English: Wild Animals in Circuses Act 2019
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 13 December 2021
Welsh: Deddf Anifeiliaid Gwyllt mewn Syrcasau Teithiol (Yr Alban) 2018
English: Wild Animals in Travelling Circuses (Scotland) Act 2018
Status B
Subject: Titles of legislation
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth sydd ar gael yn Saesneg yn unig.
Last updated: 13 December 2021
Welsh: Deddf Ansolfedd
English: Insolvency Act
Status C
Subject: Law
Part of speech: Noun, Feminine, Singular
Last updated: 26 August 2008
Welsh: Deddf Arbed Ynni Cartref
English: HECA
Status C
Subject: Housing
Part of speech: Noun, Feminine, Singular
Definition: Home Energy Conservation Act
Last updated: 17 June 2008
Welsh: Deddf Arbed Ynni yn y Cartref 1995
English: Home Energy Conservation Act 1995
Status C
Subject: Housing
Part of speech: Noun, Feminine, Singular
Definition: HECA
Last updated: 13 October 2005