TermCymru

Results are displayed in English alphabetical order A-Z
English: offshore energy
Welsh: cynhyrchu ynni ar y môr
Status C
Subject: Environment
Part of speech: Verb
Definition: Yn ymwneud â phrosiect ynni'r llanw aber afon Hafren.
Last Updated: 31 December 2008
English: offshore energy installation
Welsh: gosodiad ynni alltraeth
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Context: Any of the following installations that are maintained in the sea or on the foreshore or other land intermittently covered with water, and that are not connected with dry land by a permanent structure providing access at all times and for all purposes - (a) installations used for oil activities, gas activities or for the exploration or exploitation of gas or oil;. (b) carbon dioxide storage installations; (c) renewable energy installations. (The National Assembly for Wales (Legislative Competence) (Environment) Order 2009)
Last Updated: 8 December 2009
English: offshore installation
Welsh: gosodiad alltraeth
Status A
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Last Updated: 5 June 2015
English: Offshore Marine Conservation (Natural Habitats &c Regulations 2007
Welsh: Rheoliadau Cadwraeth Forol Alltraeth (Cynefinoedd Naturiol, &c.) 2007
Status C
Subject: Titles of legislation
Part of speech: Noun, Plural
Last Updated: 2 October 2012
English: Offshore Marine Regulations
Welsh: Rheoliadau Morol oddi ar yr Arfordir
Status C
Subject: Environment
Part of speech: Noun, Plural
Definition: Cafodd rhain eu gwneud yn 2007.
Last Updated: 3 June 2008
English: offshore oil and gas exploration and exploitation
Welsh: chwilio am olew a nwy alltraeth ac elwa arnynt
Status C
Subject: Law
Part of speech: Verb
Last Updated: 7 June 2011
English: offshore oil and gas operations
Welsh: gweithrediadau olew a nwy ar y môr
Status C
Subject: Environment
Part of speech: Noun, Plural
Last Updated: 23 July 2003
English: offshore planning region
Welsh: rhanbarth cynllunio dyfroedd y môr mawr
Status A
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 22 April 2014
English: offshore port
Welsh: porthladd alltraeth
Status B
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: porthladdoedd alltraeth
Last Updated: 2 April 2025
English: Offshore Renewable Energy Catapult
Welsh: Offshore Renewable Energy Catapult
Status A
Subject: Europe
Part of speech: Proper noun
Notes: Menter Ewropeaidd.
Last Updated: 12 November 2020
English: Offshore Renewables Joint Industries Partnership
Welsh: Cyd-fwrdd y Diwydiant Cynhyrchu Ynni Adnewyddadwy ar y Môr
Status B
Subject: Planning
Part of speech: Noun, Masculine, Singular
Last Updated: 27 February 2020
English: Offshore Renewables Policy Manager
Welsh: Rheolwr Polisi Ynni Adnewyddadwy Alltraeth
Status C
Subject: Welsh Government posts and departments
Part of speech: Noun, Masculine, Singular
Last Updated: 13 May 2013
English: offshore resource management plan
Welsh: cynllun rheoli adnoddau’r môr
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Last Updated: 19 December 2011
English: offshore wind
Welsh: ynni gwynt alltraeth
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Notes: Mewn cyd-destunau llai technegol gellid ystyried defnyddio "ynni gwynt ar y môr".
Last Updated: 26 January 2026
English: Offshore Wind Environmental Improvement Package
Welsh: Pecyn Gwelliannau Amgylcheddol Ynni Gwynt Alltraeth
Status B
Subject: Environment
Part of speech: Noun, Masculine, Singular
Notes: Elfen yn y Bil Diogeledd Ynni gan Lywodraeth y DU.
Last Updated: 8 May 2024
English: offshore wind farm
Welsh: fferm wynt ar y môr
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Last Updated: 13 August 2003
English: offside lane
Welsh: lôn allanol
Status A
Subject: Transport
Part of speech: Noun, Feminine, Singular
Plural: lonydd allanol
Definition: y lôn ar gerbydffordd sydd bellaf o ymyl y ffordd
Context: mynd yn lôn allanol y gerbytffordd tua'r gorllewin i unrhyw gyfeiriad ac eithrio tua'r dwyrain
Last Updated: 16 November 2021
English: off-site
Welsh: oddi ar y safle
Status B
Subject: Economic development
Part of speech: Adjective
Notes: Yng nghyd-destun canllawiau i weithleoedd yn sgil COVID-19.
Last Updated: 25 June 2020
English: off-site emergency plan
Welsh: cynllun oddi ar y safle ar gyfer argyfyngau
Status B
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: cynlluniau oddi ar y safle ar gyfer argyfyngau
Definition: Cynllun ar gyfer ymdrin â mesurau i atal a rheoli argyfyngau sy'n effeithio ar y cyhoedd a'r amgylchedd y tu allan i safle penodol, ee gorsaf ynni.
Last Updated: 23 March 2021
English: off-slip road
Welsh: ffordd ymadael
Status A
Subject: Transport
Part of speech: Noun, Feminine, Singular
Plural: ffyrdd ymadael
Definition: ffordd (unffordd, fel arfer) fer sy'n galluogi traffig i ymadael â phriffordd
Context: Y darn hwnnw o brif gerbytffordd tua'r gorllewin y draffordd o'r man lle y mae'r ffordd ymadael tua'r gorllewin wrth Gyffordd 23 yn gwyro o brif gerbytffordd tua'r gorllewin y draffordd i'r man lle y mae'r ffordd ymuno tua'r gorllewin wrth Gyffordd 24 Coldra yn uno â phrif gerbytffordd tua'r gorllewin y draffordd
Last Updated: 16 November 2021
English: off-street parking
Welsh: parcio oddi ar y stryd
Status B
Subject: Transport
Part of speech: Noun, Masculine, Singular
Context: Where users can charge cars and vans at home (with access to off-street parking), this offers the most convenient and costeffective charging solution.
Last Updated: 19 December 2024
English: off-take
Welsh: dargymryd
Status B
Subject: Economic development
Part of speech: Verb
Definition: Yng nghyd-destun y diwydiant ynni hydrogen, proses lle bydd cwmni sy’n defnyddio hydrogen yn ymrwymo i gontract hirdymor i brynu hydrogen gan gyflenwr. Mae hyn yn darparu’r buddsoddiad sydd ei angen ar y cyflenwr i ddatblygu’r seilwaith i gynhyrchu a chyflenwi’r hydrogen hwnnw.
Notes: Mewn cyd-destunau llai technegol, mae’n bosibl y gellid defnyddio aralleiriad fel “prynu hydrogen”.
Last Updated: 15 January 2026
English: off-take
Welsh: allbwynt
Status B
Subject: Planning
Part of speech: Noun, Masculine, Singular
Plural: allbwyntiau
Definition: Strwythur ar gyfer tynnu cynhwysyn (ee olew, dŵr, hydrogen) o storfa neu bibell.
Notes: Weithiau gwelir y ffurf Saesneg heb gysylltnod.
Last Updated: 27 March 2025
English: off-take infrastructure
Welsh: seilwaith dargymryd
Status B
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Definition: Yng nghyd-destun y diwydiant ynni hydrogen, y seilwaith sy’n galluogi cynhyrchu, cyflenwi neu ddefnyddio hydrogen gan y sectorau a’r cwmnïau sy’n ymrwymo i’w brynu.
Notes: Mewn cyd-destunau llai technegol, mae’n bosibl y gellid defnyddio aralleiriad fel “seilwaith cynhyrchu hydrogen” neu “seilwaith cyflenwi hydrogen” gan ddibynnu ar y cyd-destun.
Last Updated: 15 January 2026
English: off-taker
Welsh: cwmni dargymryd
Status B
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Plural: cwmnïau dargymryd
Definition: Yng nghyd-destun y diwydiant ynni hydrogen, cwmni sy’n defnyddio hydrogen sydd hefyd yn ymrwymo i gontract hirdymor i brynu hydrogen gan gyflenwr.
Context: Mae cwmnïau dargymryd yn allweddol i sicrhau hyfywedd buddsoddi mewn cyfleusterau cynhyrchu hydrogen.
Notes: Mewn cyd-destunau llai technegol, mae’n bosibl y gellid defnyddio aralleiriad fel “prynwr hydrogen”.
Last Updated: 15 January 2026
English: off-take sector
Welsh: y sector dargymryd
Status B
Subject: Economic development
Part of speech: Noun, Masculine, Singular
Definition: Yng nghyd-destun y diwydiant ynni hydrogen, sector sy’n cynnwys cwmnïau sydd yn ymrwymo i gontract hirdymor i brynu hydrogen gan gyflenwr.
Context: Mae’r sector dargymryd hydrogen yn chwarae rôl hanfodol wrth sbarduno galw ar gyfer buddsoddi mewn seilwaith hydrogen.
Notes: Mewn cyd-destunau llai technegol, mae’n bosibl y gellid defnyddio aralleiriad fel “sector prynu hydrogen”.
Last Updated: 15 January 2026
English: off-the-job training
Welsh: hyfforddiant i ffwrdd o'r gwaith
Status C
Subject: Education
Part of speech: Noun, Masculine, Singular
Last Updated: 30 July 2007
English: off the shelf components
Welsh: cydrannau parod
Status B
Subject: Economic development
Part of speech: Noun, Feminine, Plural
Last Updated: 3 April 2012
English: off-trade
Welsh: allfasnach
Status A
Subject: Health
Part of speech: Noun, Feminine, Singular
Last Updated: 26 November 2012
English: off-white
Welsh: llwydwyn
Status C
Subject: ICT
Part of speech: Adjective
Definition: Not quite white, rather yellowish or greyish white. Chambers Dictionary.
Last Updated: 26 January 2010
English: Ofgem
Welsh: Ofgem
Status C
Subject: Environment
Last Updated: 10 January 2003
English: of local providence
Welsh: cynefin
Status C
Subject: Law
Part of speech: Adjective
Last Updated: 17 January 2005
English: OFM
Welsh: Swyddfa'r Prif Weinidog
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am Office of the First Minister.
Last Updated: 18 May 2026
English: OFMCO
Welsh: OFMCO
Status A
Subject: Welsh Government posts and departments
Part of speech: Noun, Feminine, Singular
Notes: Dyma’r acronym a ddefnyddir yn y ddwy iaith am yr Office of the First Minister and Cabinet Office / Swyddfa’r Prif Weinidog a Swyddfa’r Cabinet – rhan o Lywodraeth Cymru.
Last Updated: 4 November 2016
English: Ofqual
Welsh: Swyddfa Rheoleiddio Cymwysterau ac Arholiadau
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Context: Office of Qualifications and Examinations Regulation
Last Updated: 2 December 2010
English: OFS
Welsh: Cynllun Ffermio Organig
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Organic Farming Scheme
Last Updated: 8 September 2009
English: of some Welsh interest
Welsh: o rywfaint o ddiddordeb i Gymru
Status B
Subject: Law
Part of speech: Adjective, Masculine, Singular
Definition: As defined in the Gifts to the Nation Scheme.
Last Updated: 23 April 2012
English: Ofsted
Welsh: Swyddfa Safonau mewn Addysg
Status C
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: Office for Standards in Education, Children's Services and Skills
Context: In England.
Last Updated: 3 September 2008
English: OFS Transitional
Welsh: Cynllun Pontio'r OFS
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Last Updated: 11 June 2014
English: OFT
Welsh: OFT
Status A
Subject: Economic development
Part of speech: Proper noun, Feminine, Singular
Definition: Office of Fair Trading
Context: Replaced by the Competition and Markets Authority in 2014.
Last Updated: 11 October 2004
English: OFTEC
Welsh: Cymdeithas Dechnegol Llosgi Olew
Status C
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Oil Firing Technical Association
Last Updated: 6 April 2011
English: Oftel
Welsh: Oftel
Status A
Subject: ICT
Part of speech: Neutral
Definition: Office of Telecommunications (Duties now inherited by Ofcom)
Last Updated: 2 September 2004
English: OFTW
Welsh: Statws heb TB swyddogol wedi’i ddiddymu
Status C
Subject: Agriculture
Part of speech: Noun, Masculine, Singular
Definition: Officially TB Free Withdrawn
Last Updated: 6 April 2011
English: Ofwat
Welsh: Ofwat
Status A
Subject: Environment
Part of speech: Noun, Feminine, Singular
Definition: Water Services Regulation Authority
Last Updated: 4 January 2006
English: OGC
Welsh: Swyddfa Masnach y Llywodraeth
Status A
Subject: General
Part of speech: Proper noun, Feminine, Singular
Definition: Office of Government Commerce
Context: UK Government.
Last Updated: 15 July 2005
English: ogee profile gutters
Welsh: landeri ogee
Status C
Subject: Estates and Cadw
Part of speech: Noun, Plural
Last Updated: 20 January 2006
English: OGL
Welsh: Y Drwydded Llywodraeth Agored
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Notes: Dyma'r acronym Saesneg a ddefnyddir am 'Open Government Licence'.
Last Updated: 8 September 2022
English: Ogmore
Welsh: Ogwr
Status A
Subject: Politics
Part of speech: Proper noun
Definition: Constituency
Last Updated: 25 June 2002
English: Ogmore Castle
Welsh: Castell Ogwr
Status A
Subject: Estates and Cadw
Part of speech: Proper noun
Notes: Dyma'r ffurfiau a ddefnyddir yn swyddogol gan Cadw yn y ddwy iaith am yr heneb dan sylw. Safonwyd gan Banel Safoni Enwau Lleoedd Comisiynydd y Gymraeg, mewn ymgynghoriad â Cadw.
Last Updated: 24 October 2024
English: Ogmore Vale
Welsh: Bro Ogwr
Status C
Subject: Place-names
Part of speech: Proper noun
Last Updated: 6 December 2005