The adj next has 3 senses (first 2 from tagged texts)
1. (24) adjacent, next, side by side -- (nearest in space or position; immediately adjoining without intervening space; "had adjacent rooms"; "in the next room"; "the person sitting next to me"; "our rooms were side by side")
2. (7) future, next, succeeding -- ((of elected officers) elected but not yet serving; "our next president")
3. following, next -- (immediately following in time or order; "the following day"; "next in line"; "the next president"; "the next item on the list")
Overview of adv next
The adv next has 1 sense (first 1 from tagged texts)
1. (11) next -- (at the time or occasion immediately following; "next the doctor examined his back")