The crossword solutions for the term 'AW, NUTS!' are 'FOO' (3 letters), 'RATS' (4 letters), and 'DARN' (4 letters). This phrase is an exclamation of surprise or frustration, usually used when something unexpected or unpleasant has happened. The three words in the crossword solutions are all slang terms that can be used to express this sentiment. 'FOO' is a milder version of the phrase, while 'RATS' and 'DARN' are stronger expressions of surprise or frustration.