A comprehensive Welsh-English and English-Welsh dictionary, prepared by the Welsh Language Department at the University of Wales Trinity Saint David in Lampeter.
Geiriadur Cymraeg-Saesneg a Saesneg-Cymraeg cynhwysfawr a gafodd ei baratoi gan Adran y Gymraeg, Prifysgol Cymru y Drindod Dewi Sant yn Llanbedr Pont Steffan.