Countries, US States, Capitals, Elements, 100 Most Common Words: Cheating Generator Puzzle

Rearrange the letters in the grid on the left to find the one 9-letter answer.
A Cheating Generator uses the letters in the grid in the usual way – in other words using each letter in the grid once only to create your answer - but it also allows one extra letter that is different for each word, which is supplied with each answer. So, can you find the forty Cheating Generator words here?
Hint: the extra-letter is shown as late as possible, so for example if you see an 'a' it means the answer has two 'A's before that one, since there's 2 in the grid