Definition of "Next" :

adjective: immediately following in time or order

"Next in line."

adjective: (of a day of the week) nearest (or nearest but one) after the present moment

"Not this Saturday, next Saturday."

adjective: nearest in space or position; immediately adjoining without intervening space

"In the next room."

adjective: (of elected officers) elected but not yet serving

"Our next president."

adverb: at the time or occasion immediately following

"Next the doctor examined his back."