Welsh, or Cymraeg, is a Celtic language spoken in Wales. It is one of the official languages of Wales, alongside English, and has a long history as a distinct language with its own literary traditions. In the context of UK English, the spelling and vocabulary associated with the Welsh language would generally align with British English conventions.

The Welsh language uses the Latin alphabet, but it includes additional letters such as “ch,” “dd,” “ll,” “rh,” and “th” with specific Welsh phonetic values. If Welsh speakers in the United Kingdom communicate in English, they are likely to use British English spelling, pronunciation, and vocabulary. However, within Welsh-speaking communities in the UK, individuals may use Welsh in various social and cultural contexts, contributing to the preservation and celebration of their linguistic heritage.

The Welsh language is actively promoted and supported in Wales, with bilingualism being a key aspect of education and public life. Signs, documents, and services are often available in both Welsh and English. The UK is home to diverse communities, and interactions in Welsh within the country may occur in specific Welsh-speaking communities or cultural events.