The term 'TINY PART' can be described by three different crossword solutions: ATOM (4 letters), CAMEO (5 letters), and TITTLE (6 letters). An ATOM is the smallest unit of matter that retains its chemical properties. A CAMEO is a small piece of jewelry, usually made of shell or stone, with a raised design on it. A TITTLE is a small dot or other mark used in writing or printing, such as the dot over the letter 'i'. All three of these terms refer to something small in size.