The term 'FOUND IT!' can be represented by two three-letter solutions in a crossword puzzle: AHA and IVE. AHA is an expression of surprise or realization, often used when someone finds something they have been looking for. IVE is a contraction of the word 'I have, ' which is often used to express possession or ownership. Together, these two solutions form the phrase 'I found it!' which is an expression of joy and satisfaction when someone discovers something they have been searching for.