drive-in \ˈdrīˌvin\noun (-s) Usage:often attributive Etymology:drive in, v., from drive (I) + in : a place of business (as a motion-picture theater, bank, or refreshment stand) laid out and equipped so as to allow its patrons to be served or accommodated while remaining in their automobiles < a new drive-in business > < the convenient drive-in window at the bank > < let's eat at the drive-in tonight >