The term 'turn inward' can be expressed in the crossword solution 'INVERT, ' which is a six-letter word. Inverting something means to reverse its direction or orientation, such as turning it inside out or upside down. The phrase 'turn inward' can refer to a person's mental or emotional state, where they focus their attention on their own thoughts and feelings rather than on external events or people. It can also refer to a physical action, such as folding one's arms or legs inwards.