► Details Suggestions (1) External J acronym in English is: J Sign in or Register to see the full entries from the Welsh-English section of the dictionary which includes definitions, translations, pronunciation, phrases, grammar, mutations, conjugated verbs, prepositions, adjectives and more. were you looking for j? External Dictionary Portal This is a library of dictionaries and other online resources where you can search further for J*: Specialist Dictionaries J in the University of Wales Dictionary Glossaries J in the Bangor Dictionary J in the Trinity Saint David Dictionary Terminology J in the National Terminology Portal J in Term Cymru J in the Termiadur Addysg J in the Coleg Cymraeg's Terms Encyclopedia J in Wicipedia (Welsh) Example Sentences Sentences containing: J in the Assembly Proceedings J in the CorCenCC Corpus *External websites will be opened in a new window.