The term FITS TOGETHER SNUGLY can be summarized by the crossword solution NESTS. This term is often used to describe a situation where two or more objects fit together perfectly, without any gaps or spaces between them. It is also used to describe a situation where two or more people have a strong connection and understanding of each other. The term is often used in relation to animals that build nests, as they carefully construct their homes to fit together snugly.