The term 'itty-bitty bit' is a phrase used to describe something that is very small. The crossword solutions for this term are MITE (4 letters), WHIT (4 letters), ATOM (4 letters), IOTA (4 letters), TAD (3 letters), and SNIPPET (7 letters). MITE is an old English word meaning a very small creature, while WHIT is an old English word meaning the smallest particle or amount. ATOM is a scientific term referring to the smallest particle of matter, while IOTA is a Greek letter meaning the smallest amount. TAD is an informal term meaning a small amount, and SNIPPET is an informal term meaning a small piece or part. All of these words refer to something that is very small, making them appropriate solutions for the term 'itty-bitty bit'.