A is for awesome. B is for brainchild. C is for C-House, James Beard Award-winning chef Marcus Samuelsson’s new seafood restaurant. D is for dinner, now served for the first time. E is for expectations — high ones. F is for fish. G is for grill. H is for happiness. I is for ice cream — coconut cashew! J is for Jonah crab claw. K is for Kumamoto. L is for large plates (lobster club, seafood tagliatelle). M is for mmm. N is for nautical photographs. O is for open kitchen. P is for pickled. Q is for quick — go now! R is for raw bar. S is for small plates (smoked corn flan, arugula risotto). T is for tuna. U is for urchin. V is for vanilla bean cupcakes. W is for wine. X marks the spot. Y is for you. Z is for (busted) zipper. Now you know. C-House, Affinia Chicago, 166 East Superior Street, at Saint Clair Street (312-523-0923).