In concert is a term used to describe when two or more people, groups, or organizations come TOGETHER to perform a task or activity. The crossword solutions for this term are JOINTLY (7 letters), TOGETHER (8 letters), LIVE (4 letters), ASONE (5 letters), SIMPATICO (9 letters), and LIKEMINDED (10 letters). These words all refer to the idea of working in harmony with others, whether it be in a musical performance, a business venture, or any other kind of collaboration.