In Sync is a term used to describe two or more people or things that are working together in harmony. The crossword solutions for this term are ATTUNED (7 letters), ASONE (5 letters), and EYETOEYE (8 letters). ATTUNED means to be in tune with someone or something, while ASONE means together as one. EYETOEYE means to look at someone directly and face-to-face. All of these words describe the concept of In Sync, which is when two or more people or things are working together in harmony.