Why does the dictionary search feature in English / Scottish Gaelic not work with all words used in the course?
You are correct - it doesn't work. I don't know why. I use the "Words" list which is on the Learn page, under "More ...". If you click on a word, it will take you to a page with a pronunciation for the word and several sentences that use the word, also with pronunciations. The "Words" list is only words in the course. If you want a general online dictionary, try the dictionary at LearnGaelic.scot or www.faclair.com