every (Adjective) — (used of countable nouns) each and all of the members of a group considered singly and without exception. ex. "every person is mortal" ex. "every party is welcome" ex. "had every hope of success" ex. "every chance of winning"
every (Adjective) — Each and all of a series of entities or intervals as specified. ex. "every third seat" ex. "every two hours"