eat-inEnglishOxford Dictionary of Englisheat-in /ˈiːtɪn / ▸ adjective 1 North American English (of a kitchen) designed for eating in as well as cooking: a spacious eat-in kitchen. 2 relating to or offering food that is eaten in the restaurant where it is ordered rather than being taken away: the incentive will reduce bills by 50 per cent for all eat-in meals the food market includes an eat-in restaurant.