► Welsh Thesaurus See more in the Dictionary actinium actiniwm This is a partial record only. Sign in or Register to see the full entries from the English-Welsh Thesaurus The sample below shows the English-Welsh Thesaurus record for 'sing': sing canu, cathlu, clepian, chwibanu, galw, lleisio, morio, perori, prepian, pyncio, suo, tiwnio canu cathlu lleisio perori pyncio tiwnio clepian chwibanu galw morio prepian suo