🏴󠁧󠁢󠁷󠁬󠁳󠁿 The best dictionaries for learning Welsh

Bruce Griffiths and Dafydd Glyn Jones's Welsh Academy dictionary is the standard reference for translating into Welsh, with idioms and register notes rather than bare word pairs. Use it when you need to write Welsh; use Geiriadur Prifysgol Cymru when you need to know what an old word meant.

Welsh's equivalent of the OED, free online and searchable. Overkill for a learner asking what a word means today, and exactly right when you meet a word in older poetry or want to know whether a usage is modern. Includes an app.

Over 100 language editions; the English edition alone has millions of entries covering hundreds of languages, with IPA, declension and conjugation tables, etymologies and usage notes that commercial apps usually paywall. The etymology sections are quietly one of the best vocabulary-retention tools available. Being crowd-sourced, coverage is uneven and rare entries can be wrong — cross-check anything unusual against a native-language dictionary.

Around 6 million words recorded by native speakers across 400+ languages, usually with several accents per word so you can hear regional variation. Free to search on the site; the paid tiers are aimed at API users and bulk audio downloads. Indispensable for names, place names and anything a TTS voice would mangle — many learners wire it directly into Anki for card audio.