Hmm, I consulted the online dictionaries [of doom!] and it seems more of a synonym for "plenty", rather than "big". Even then, "ample" seems to mean "just enough or more than enough", which doesn't really mean "big". Thanks for the comment, though.
Not too bad! I bet if I took this quiz myself, I wouldn't even get that many. Most of the answers were only taken from the thesauri to ensure that I cover as many synonyms as possible.