"An t-ugh mòr."
Translation:The big egg.
If you have a look at "tips" at the start of the lesson, you'll see that there's three different ways of saying "the"
Words beginning with BFMP - am (remember: big fat members of parliament)
Words beginning with all other consonants - an
Words beginning with vowels - an t- (example, an t-uisge = the water)