TermCymru

Results are displayed in alphabetical order.
English: iVMS
Welsh: iVMS
Status B
Subject: Agriculture
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r acronym a ddefnyddir yn y ddwy iaith am inshore vessel monitoring system / system fonitro cychod y glannau. Gweler y term llawn am ddiffinad.
Last Updated: 20 July 2023
English: Ivory Act 2018
Welsh: Deddf Ifori 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
English: Ivory Coast
Welsh: Y Traeth Ifori
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Safonwyd yr enw hwn gan ddilyn yr egwyddorion a nodir yn yr erthygl 'Dynodi enwau gwladwriaethau, tiriogaethau a chenhedloedd diwladwriaeth' yn yr Arddulliadur.
Last Updated: 17 August 2021
English: IWA
Welsh: Sefydliad Materion Cymreig
Status A
Subject: Culture and the arts
Part of speech: Noun, Masculine, Singular
Definition: Institute of Welsh Affairs
Last Updated: 4 August 2006
English: IWB
Welsh: bwrdd gwyn rhyngweithiol
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: interactive white board
Last Updated: 22 September 2011
English: I will be away from the office until further notice
Welsh: Byddaf i ffwrdd o'r swyddfa am gyfnod amhenodol
Status C
Subject: Personnel
Last Updated: 20 May 2005
English: IWPRB
Welsh: Corff Adolygu Cyflogau Annibynnol Cymru
Status A
Subject: Education
Part of speech: Noun, Masculine, Singular
Notes: Dyma’r acronym Saesneg a ddefnyddir am Independent Welsh Pay Review Body.
Last Updated: 11 September 2025
English: J28
Welsh: cyffordd 28
Status C
Subject: Law
Part of speech: Noun, Feminine, Singular
Last Updated: 30 March 2005
English: JAC
Welsh: Y Comisiwn Penodiadau Barnwrol
Status A
Subject: Justice and order
Part of speech: Proper noun, Masculine, Singular
Definition: Judicial Appointments Commission
Last Updated: 14 July 2006
English: jackdaw
Welsh: jac-y-do
Status C
Subject: Birds
Part of speech: Noun, Masculine, Singular
Plural: jac-dos
Last Updated: 2 April 2025
English: jacket potato
Welsh: taten bob
Status A
Subject: Food
Part of speech: Noun, Feminine, Singular
Plural: tatws pob
Last Updated: 4 April 2019
English: Jack Russell Terrier
Welsh: Daeargi Jack Russell
Status C
Subject: Animals
Last Updated: 29 June 2007
English: jack staff
Welsh: tramwel/tremwal/pren unioni
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 14 January 2003
English: jack stick
Welsh: tramwel/tremwal/pren unioni
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: Cyfieithiad Amgueddfa Werin Cymru.
Last Updated: 14 January 2003
English: JACS
Welsh: System Cyd-godio Pynciau Academaidd
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: Joint Academic Coding System
Last Updated: 15 September 2009
English: JAFF
Welsh: Fframwaith Asesu'r Teulu ar y Cyd
Status A
Subject: Social services
Part of speech: Noun, Masculine, Singular
Definition: Joint Assessment Family Framework. Families First programme.
Last Updated: 18 November 2011
English: jagged edge
Welsh: ymyl garw
Status B
Subject: Politics
Part of speech: Noun, Masculine, Singular
Plural: ymylon garw
Definition: Yng nghyd-destun y setliad datganoli, disgrifiad o'r ffin rhwng pwerau datganoledig a phwerau a gedwir yn ôl.
Last Updated: 7 September 2023
English: jam
Welsh: tagfa
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last Updated: 19 July 2005
English: Jamaica
Welsh: Jamaica
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Safonwyd yr enw hwn gan ddilyn yr egwyddorion a nodir yn yr erthygl 'Dynodi enwau gwladwriaethau, tiriogaethau a chenhedloedd diwladwriaeth' yn yr Arddulliadur.
Last Updated: 17 August 2021
English: jamb
Welsh: cilbost
Status C
Subject: Estates and Cadw
Part of speech: Noun, Masculine, Singular
Definition: The side of an opening in a wall, for a door or window; or that part of a frame which sits against the side of an opening.
Context: Ffynhonnell: Taflen wybodaeth gyhoeddus Cyngor Gwynedd.
Last Updated: 23 April 2015
English: jambon de Paris
Welsh: jambon de Paris
Status B
Subject: Food
Part of speech: Noun, Masculine, Singular
Last Updated: 3 December 2025
English: Japan
Welsh: Japan
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Safonwyd yr enw hwn gan ddilyn yr egwyddorion a nodir yn yr erthygl 'Dynodi enwau gwladwriaethau, tiriogaethau a chenhedloedd diwladwriaeth' yn yr Arddulliadur.
Last Updated: 17 August 2021
English: Japanese
Welsh: Japaneaidd
Status C
Subject: Personnel
Part of speech: Adjective
Last Updated: 22 June 2007
English: Japanese
Welsh: Japaneeg
Status C
Subject: Personnel
Part of speech: Noun, Feminine, Singular
Definition: language
Last Updated: 16 January 2006
English: Japanese bunching onion
Welsh: sibwnsyn
Status C
Subject: Plants
Last Updated: 14 November 2007
English: Japanese carpet shell
Welsh: cragen fylchog Manila
Status A
Subject: Animals
Part of speech: Noun, Feminine, Singular
Definition: Ruditapes phillipinarum
Context: Also known as "Manila clam".
Last Updated: 11 April 2013
English: Japanese encephalitis
Welsh: enseffalitis Japaneaidd
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Last Updated: 14 April 2008
English: Japanese knotweed
Welsh: clymog Japan
Status C
Subject: Plants
Part of speech: Noun, Masculine, Singular
Definition: pla-blanhigyn
Last Updated: 14 April 2004
English: Japanese skimmia
Welsh: sgimia Japan
Status A
Subject: Plants
Part of speech: Noun, Masculine, Singular
Plural: sgimiâu Japan
Definition: skimmia japonica
Last Updated: 21 June 2022
English: Jargon Buster
Welsh: Deall y Jargon
Status C
Subject: Personnel
Part of speech: Verb
Definition: In the Assembly.
Last Updated: 12 June 2006
English: jaundice
Welsh: clefyd melyn
Status C
Subject: Health
Part of speech: Noun, Masculine, Singular
Last Updated: 13 March 2008
English: jay
Welsh: sgrech y coed
Status A
Subject: Birds
Part of speech: Noun, Masculine, Singular
Last Updated: 4 June 2004
English: jays
Welsh: sgrechod y coed
Status C
Subject: Birds
Part of speech: Noun, Plural
Last Updated: 20 April 2011
English: jazz piano
Welsh: piano jazz
Status C
Subject: Culture and the arts
Part of speech: Noun, Masculine, Singular
Last Updated: 6 August 2008
English: JCGQ
Welsh: Cyd-gyngor Cymwysterau Cyffredinol
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: Joint Council for General Qualifications
Last Updated: 7 September 2005
English: JCSI
Welsh: Cyd-bwyllgor ar Offerynnau Statudol
Status C
Subject: Committees
Part of speech: Noun, Masculine, Singular
Definition: Joint Committee on Statutory Instruments
Last Updated: 15 January 2008
English: JCVI
Welsh: Cyd-bwyllgor ar Imiwneiddio a Brechu
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Joint Committee on Vaccination and Immunisation
Notes: Dyma'r acronym Saesneg a ddefnyddir ar gyfer y Joint Committee on Immunisation and Vaccination
Last Updated: 14 January 2021
English: JEGS
Welsh: Cymorth Graddio a Gwerthuso Swyddi
Status C
Subject: Personnel
Part of speech: Noun, Masculine, Singular
Definition: Job Evaluation and Grading Support
Last Updated: 25 February 2004
English: jejunostomy
Welsh: jejwnostomi
Status B
Subject: Health
Part of speech: Noun, Masculine, Singular
Definition: Llawdriniaeth i greu agoriad i'r jejwnwm (rhan o'r coluddyn bach). Cysylltir tiwb bwydo â'r coluddyn bach, er mwyn rhoi maeth i gleifion na allant fwyta neu yfed digon.
Last Updated: 23 January 2025
English: jellyfish
Welsh: sglefren fôr
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 5 October 2011
English: jennet
Welsh: mul
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Definition: offspring of a female donkey and a stallion
Last Updated: 5 March 2007
English: JEREMIE
Welsh: Cyd-adnoddau Ewropeaidd ar gyfer Busnesau Micro i Ganolig
Status C
Subject: Economic development
Part of speech: Noun, Plural
Definition: Joint European Resources for Micro to Medium Enterprises
Last Updated: 16 April 2008
English: Jersey
Welsh: Jersey
Status A
Subject: Place-names
Part of speech: Proper noun
Notes: Safonwyd yr enw hwn gan ddilyn yr egwyddorion a nodir yn yr erthygl 'Dynodi enwau gwladwriaethau, tiriogaethau a chenhedloedd diwladwriaeth' yn yr Arddulliadur.
Last Updated: 15 September 2022
English: JERU
Welsh: Uned Gwerthuso Swyddi ac Adolygu
Status C
Subject: Personnel
Part of speech: Noun, Feminine, Singular
Definition: Job Evaluation and Review Unit
Last Updated: 17 June 2008
English: Jerusalem
Welsh: Jerwsalem
Status B
Subject: Place-names
Part of speech: Proper noun
Last Updated: 9 September 2003
English: Jerusalem artichokes
Welsh: gellyg y ddaear
Status C
Subject: Environment
Part of speech: Noun, Plural
Last Updated: 29 July 2003
English: JESG
Welsh: Cyd-grŵp Gwasanaethau Brys
Status C
Subject: Fire and rescue
Part of speech: Noun, Masculine, Singular
Definition: Joint Emergency Services Group
Last Updated: 7 September 2006
English: JESIP
Welsh: JESIP
Status B
Subject: Local government
Part of speech: Noun, Feminine, Singular
Definition: Sefydliad sy'n darparu arweiniad ar weithredu amlasiantaethol wrth ymateb i ddigwyddiadau brys.
Notes: Sefai'r acronym yn wreiddiol am y Joint Emergency Services Interoperability Programme, ond ni ddefnyddir y teitl llawn.
Last Updated: 9 October 2024
English: JESIP Joint Doctrine: the interoperability framework
Welsh: Athrawiaeth ar y Cyd JESIP: y fframwaith rhyngweithredu
Status B
Subject: Local government
Part of speech: Noun, Feminine, Singular
Definition: Arweiniad ar weithredu amlasiantaethol wrth ymateb i ddigwyddiadau brys.
Notes: Teitl cwrteisi.
Last Updated: 9 October 2024
English: JESP
Welsh: Gwerthuso Swyddi Uwch
Status C
Subject: Personnel
Part of speech: Verb
Definition: Job Evaluation for Senior Posts
Last Updated: 29 September 2005