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Geiriadur Cymraeg - Welsh dictionary 0.02 Requires Restart
Welsh-language dictionary. Source files taken from OpenOffice, under GPL, and copyright Canolfan Bedwyr, University of Wales...
About this Add-on
How to use the dictionary:
Right-click in any textbox and choose "cy_GB" from the "Languages" menu in the context menu. This will be remembered for all future textboxes.