威尔士语 terms categorized by the manner and context in which they are used by speakers.
- Category:威尔士语冒犯用语：常被认为会冒犯他人的威尔士语词汇。
- Category:威尔士语口语词：威尔士语中主要用于休闲谈话而非正式的书面作品和演讲等的词语。
- Category:威尔士语幽默用语：幽默、有趣或开玩笑的威尔士语词语。
- Category:威尔士语书面用语：威尔士语 terms whose usage is typically restricted to works of literature.
- Category:威尔士语粗俗用语：威尔士语 terms whose tone (rather than the meaning) is offensive to polite company.
- Category:威尔士语贬义用语：威尔士语 terms that belittle (lessen in value).
- Category:威尔士语过时用语：威尔士语 terms that are no longer fashionable, thus are anachronistic.