The term 'wee bits' is a colloquial phrase used to refer to small things or amounts. The crossword solutions for this term are mites (5 letters), tads (4 letters), JOTS (4 letters), DABS (4 letters), and IOTAS (5 letters). Mites are tiny creatures, tads are small amounts, JOTS are small amounts, DABS are small amounts, and IOTAS are very small amounts. All of these words can be used to describe something that is very small.