Synonyms for diner
noun
One who eats
patron, customer, luncher, guest, boarder, eater, diner-out, gourmet, gourmand, trencherman, snacker, grazer*, nosher*, chowhound*; see also glutton.
A restaurant, as on a train
luncheonette, coffee shop, dining car, greasy spoon*; see dining room, restaurant.
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