The crossword solution for the term 'Working Harmoniously (with)' is INPHASE, which is a seven-letter word. Inphase is a term used to describe two or more people working together in harmony and cooperation. It is often used to describe a team of people who are working together to achieve a common goal. Inphase can also be used to describe a situation where two or more people are working together in a way that is mutually beneficial and respectful.