Looking on the internet deeply has found these results:

at dinner is the most popular phrase on the web.

in dinner 1146,000 results on the web	at dinner 12,300,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
#1 (permalink) Fri Jun 30, 2006 4:15 am "for dinner" vs. "in dinner". English Grammar Tests, Elementary Level ESL/EFL Test #104 "Conjunctions: and, but, ... ... love is than a fatted ox and hatred with it. unknown author · In dinner talk it is perhaps allowable to fling any faggot rather than let the fire go out. J.M. Barrie. Jul 9, 2014 ... Hi, Which one is better? What did you eat in dinner? What did you eat for dinner? (I guess the second one. The answer usually goes like ... ... adventures of a happy, Canadian, wife and mummy who loves to: cook, drink wine, redo our vintage Boler and blog right here, at Jane's Adventures In Dinner.	See you at dinner, chickens. Anne Archibald's foundation board members at dinner. You told me Last week at dinner. You noticed your mother struggling at dinner. Jeff was much too relaxed at dinner. You noticed your mother struggling at dinner. Now we're all seated at dinner. Our parents gave us logic problems at dinner.

in dinner

1146,000 results on the web

at dinner

12,300,000,000 results on the web

More popular!

#1 (permalink) Fri Jun 30, 2006 4:15 am "for dinner" vs. "in dinner". English Grammar Tests, Elementary Level ESL/EFL Test #104 "Conjunctions: and, but, ...
... love is than a fatted ox and hatred with it. unknown author · In dinner talk it is perhaps allowable to fling any faggot rather than let the fire go out. J.M. Barrie.
Jul 9, 2014 ... Hi, Which one is better? What did you eat in dinner? What did you eat for dinner? (I guess the second one. The answer usually goes like ...
... adventures of a happy, Canadian, wife and mummy who loves to: cook, drink wine, redo our vintage Boler and blog right here, at Jane's Adventures In Dinner.