TermCymru

Results are displayed in English alphabetical order A-Z
English: offending behaviour
Welsh: ymddygiad troseddol
Status C
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last Updated: 27 April 2010
English: offending vehicle
Welsh: cerbyd sy'n peri tramgwydd
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last Updated: 30 August 2012
English: offensive
Welsh: tramgwyddus
Status B
Subject: Law
Part of speech: Adjective
Context: Rydym yn benodol yn gwrthod bod yn gyfrifol am unrhyw ddeunydd gwallus, tramgwyddus, difenwol neu anweddus sy’n ymddangos ar wefannau trydydd parti.
Notes: Yng nghyd-destun deunyddiau allai beri tramgwydd i eraill. Dylid gofalu rhag drysu ag ystyr arall y gair ‘offensive’ mewn termau fel offensive weapon / arf ymosodol.
Last Updated: 14 January 2025
English: offensive weapon
Welsh: arf ymosodol
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last Updated: 1 August 2012
English: Offensive Weapons Act 2019
Welsh: Deddf Arfau Ymosodol 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
English: offensive weapons homicide review
Welsh: adolygiad lladdiad ag arf ymosodol
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Plural: adolygiadau lladdiadau ag arf ymosodol
Definition: Proses adolygu statudol o laddiad pan fo’r sawl a laddwyd dros 18 oed a bod amgylchiadau’r ymosodiad yn cynnwys defnydd o arf ymosodol, neu bod tebygrwydd y defnyddiwyd arf o’r fath. Hefyd, enghraifft o adolygiad o'r fath.
Notes: Mae'r broses hon wedi ei hymgorffori bellach yn yr Adolygiad Diogelu Unedig Sengl.
Last Updated: 2 July 2025
English: Offering support and advice to all victims and witnesses
Welsh: Yn cynnig cymorth a chyngor i ddioddefwyr a thystion
Status C
Subject: Social services
Part of speech: Verb
Last Updated: 27 May 2004
English: offer notice
Welsh: hysbysiad cynnig
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Last Updated: 23 September 2005
English: off-farm wintered
Welsh: cael eu gaeafu oddi ar y fferm
Status C
Subject: Agriculture
Part of speech: Adjective
Last Updated: 3 August 2010
English: off gas-grid homes
Welsh: cartrefi nad ydynt ar y grid nwy
Status C
Subject: Environment
Part of speech: Noun, Plural
Last Updated: 25 March 2010
English: off-grid
Welsh: eiddo nad yw ar y grid nwy
Status B
Subject: Housing
Part of speech: Noun, Masculine, Singular
Notes: Ymadrodd llaw fer yw'r term Saesneg, i ddisgrifio eiddo (neu bobl sy'n berchen ar eiddo) nad yw wedi ei gysylltu â'r grid nwy cenedlaethol ac sydd felly yn dibynnu ar fathau eraill o danwydd, ee olew gwresogi, LPG neu systemau amgen fel pympiau gwres. Caiff yr ymadrodd Saesneg ei atodi'n ansoddeiriol at bob math o dermau eraill, ac weithiau bydd hyn yn golygu dehongli perthynas yr elfen 'off-grid' a'r elfen graidd, ee off-grid fuel > tanwydd ar gyfer eiddo nad yw ar y grid nwy.
Last Updated: 18 March 2026
English: off-grid fuel
Welsh: tanwydd ar gyfer eiddo nad yw ar y grid nwy
Status B
Subject: Housing
Part of speech: Noun, Masculine, Singular
Plural: tanwyddau ar gyfer eiddo nad yw ar y grid nwy
Notes: Gweler y cofnod am off grid / eiddo nad yw ar y grid nwy.
Last Updated: 18 March 2026
English: office
Welsh: swydd
Status C
Subject: Personnel
Part of speech: Noun, Feminine, Singular
Context: eg the office of Auditor General
Last Updated: 10 May 2011
English: office address
Welsh: cyfeiriad swyddfa
Status B
Subject: Local government
Part of speech: Noun, Masculine, Singular
Notes: Yng nghyd-destun etholiadau.
Last Updated: 10 February 2022
English: Office and Accommodation
Welsh: Swyddfeydd ac Adeiladau
Status C
Subject: Welsh Government posts and departments
Part of speech: Noun, Plural
Last Updated: 17 December 2002
English: Office and Facilities Management Branch
Welsh: Y Gangen Rheoli Swyddfa a Chyfleusterau
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Last Updated: 16 February 2004
English: office applications
Welsh: cymwysiadau swyddfa
Status C
Subject: ICT
Part of speech: Noun, Plural
Last Updated: 22 January 2009
English: Office Assistant
Welsh: Cynorthwyydd Swyddfa
Status B
Subject: Welsh Government posts and departments
Part of speech: Noun, Masculine, Singular
Last Updated: 2 March 2015
English: office bar
Welsh: bar swyddfa
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last Updated: 19 July 2005
English: Office for AI
Welsh: Y Swyddfa AI
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Last Updated: 31 July 2025
English: Office for Budget Responsibility
Welsh: Y Swyddfa Cyfrifoldeb Cyllidebol
Status C
Subject: Finance and statistics
Part of speech: Proper noun, Feminine, Singular
Definition: OBR
Context: Teitl cwrteisi.
Last Updated: 17 October 2012
English: Office for Criminal Justice Reform
Welsh: Swyddfa Diwygio Cyfiawnder Troseddol
Status C
Subject: Justice and order
Part of speech: Noun, Feminine, Singular
Definition: OCJR
Last Updated: 19 December 2006
English: Office for Disability Issues
Welsh: Swyddfa Materion Anabledd
Status C
Subject: Social services
Part of speech: Noun, Feminine, Singular
Definition: ODI
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
English: Office for Environmental Protection
Welsh: Swyddfa Diogelu'r Amgylchedd
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Notes: Teitl cwrteisi ar enw corff sydd yn gweithredu yn Lloegr yn unig.
Last Updated: 22 April 2025
English: Office for Fair Access
Welsh: Y Swyddfa dros Fynediad Teg
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Last Updated: 29 July 2004
English: Office for Fair Access for Students
Welsh: Swyddfa Mynediad Teg i Fyfyrwyr
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Last Updated: 4 June 2004
English: Office for Low Emission Vehicles
Welsh: Swyddfa Cerbydau Allyriadau Isel
Status A
Subject: Transport
Part of speech: Proper noun, Feminine, Singular
Definition: OLEV
Last Updated: 23 October 2013
English: Office for National Statistics
Welsh: Y Swyddfa Ystadegau Gwladol
Status A
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Definition: ONS
Last Updated: 1 June 2005
English: Office for Nuclear Development
Welsh: Swyddfa Datblygu Niwclear
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: OND
Last Updated: 27 April 2010
English: Office for Nuclear Regulation
Welsh: Y Swyddfa Reoleiddio Niwclear
Status B
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 23 March 2021
English: Office for Project Delivery
Welsh: Y Swyddfa Cyflawni Prosiectau
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Masculine, Singular
Last Updated: 31 March 2022
English: Office for Public Management
Welsh: Y Swyddfa Rheolaeth Gyhoeddus
Status A
Subject: Politics
Part of speech: Proper noun, Feminine, Singular
Definition: OPM
Last Updated: 12 May 2006
English: Office for Renewable Energy Deployment
Welsh: Swyddfa Defnyddio Ynni Adnewyddadwy
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 23 September 2009
English: Office for Science and Technology
Welsh: Y Swyddfa dros Wyddoniaeth a Thechnoleg
Status C
Subject: Europe
Part of speech: Noun, Feminine, Singular
Definition: Llywodraeth y DU
Last Updated: 29 July 2004
English: Office for Security and Counter Terrorism
Welsh: Swyddfa Diogelwch a Gwrthderfysgaeth
Status C
Subject: Justice and order
Part of speech: Proper noun, Feminine, Singular
Definition: OSCT
Last Updated: 17 October 2012
English: Office for Standards in Education, Children’s Services and Skills
Welsh: Y Swyddfa Safonau mewn Addysg, Gwasanaethau Plant a Sgiliau
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
English: Office for Statistics Regulation
Welsh: Y Swyddfa Rheoleiddio Ystadegau
Status B
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Last Updated: 24 November 2025
English: Office for Strategic Co-ordination of Health Research
Welsh: Swyddfa Cydlynu Strategol Ymchwil i Iechyd
Status C
Subject: Health
Part of speech: Noun, Feminine, Singular
Definition: OSCHR
Last Updated: 13 May 2008
English: Office for Tenants and Social Landlords
Welsh: Swyddfa ar gyfer Tenantiaid a Landlordiaid Cymdeithasol
Status C
Subject: Housing
Part of speech: Noun, Feminine, Singular
Last Updated: 13 May 2011
English: Office for Zero Emission Vehicles
Welsh: Y Swyddfa Cerbydau Di-allyriadau
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
English: office locations
Welsh: lleoliad y swyddfeydd
Status C
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last Updated: 12 June 2006
English: Office Manager
Welsh: Rheolwr Swyddfa
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Masculine, Singular
Last Updated: 16 May 2019
English: Office Manager and Diary Secretary
Welsh: Rheolwr Swyddfa ac Ysgrifennydd Dyddiadur
Status C
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last Updated: 1 September 2010
English: Office Manager and Personal Assistant
Welsh: Rheolwr Swyddfa a Chynorthwyydd Personol
Status A
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Last Updated: 19 May 2005
English: office member
Welsh: swyddog-aelod
Status B
Subject: Law
Part of speech: Noun, Masculine, Singular
Last Updated: 10 May 2012
English: Office of Chief Social Research Officer
Welsh: Swyddfa'r Prif Swyddog Ymchwil Gymdeithasol
Status C
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Last Updated: 28 April 2008
English: Office of Communications
Welsh: Y Swyddfa Gyfathrebiadau
Status A
Subject: ICT
Part of speech: Noun, Feminine, Singular
Definition: Ofcom
Last Updated: 27 April 2006
English: Office of Environmental Governance Wales
Welsh: Swyddfa Llywodraethiant Amgylcheddol Cymru
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 8 May 2025
English: Office of Fair Trading
Welsh: Y Swyddfa Masnachu Teg
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
English: Office of Fair Trading report following its care homes market study
Welsh: adroddiad y Swyddfa Masnachu Teg yn dilyn ei hastudiaeth o'r farchnad cartrefi gofal
Status C
Subject: Social services
Part of speech: Noun, Masculine, Singular
Definition: Disgrifiad o adroddiad Saesneg yw hwn - nid dyma'r union deitl ar y clawr.
Last Updated: 17 October 2005