WordNet sense 1 (an anticipated outcome that is intended or that guides your planned actions):

aim, design, intent, intention

WordNet sense 2 (what something is used for):

function, role, use, use

WordNet sense 3 (the quality of being determined to do or achieve something):

determination

WordNet sense 4 (propose or intend):

propose, purport

WordNet sense 5 (reach a decision):

resolve, resolve