The term IT CAN END ON A HIGH NOTE can be solved by the crossword solution ARIA, which is a four-letter word. An ARIA is a type of song or musical composition that is usually part of an opera or other large vocal work. It is typically a solo piece for a singer, accompanied by an orchestra or other musical ensemble. An ARIA often has a dramatic character and is used to express strong emotions. The term 'ARIA' is derived from the Italian word for 'AIR' or 'MELODY'.