The term 'depend on' can be expressed in a variety of ways, as evidenced by the crossword solutions. The four-letter words 'RELY, ' 'LEAN, ' 'REST, ' and 'RIDE' all suggest that one is relying on something else for support or stability. The five-letter words 'TRUST, ' 'HINGE, ' and 'tieto' further emphasize the idea of relying on something else, while the seven-letter words 'BELIEVE' and 'trustin' suggest a deeper level of faith in the object of dependence. Together, these words demonstrate the various nuances of the term 'depend on.'