Notes
Please note that there is no need to use a circumflex on the Welsh form Y Rhws. It is contrary to the principles of Welsh orthography to use a circumflex on vowels in one-syllable words ending in -s.
Definite article
The Welsh definite article (y/yr) should be included in full and capitalised when preceding the Welsh form on signage where the place-name is the main focus of the sign. Further advice on how to display place-names on signage can be found in the technical guidance on our website.
When writing this name as part of a Welsh sentence, the definite article should be shown in lower case, e.g. ‘yn y Rhws’ (in Rhoose). It can also be contracted following a vowel in accordance with the rules of Welsh grammar, e.g. ‘mynd i’r Rhws’ (going to Rhoose).