Supper? Tea? Dinner? Something else entirely?
Dinner if it’s the biggest meal of the day. Tea if it isn’t.
When I was a kid it was “tea”. But somewhere along the line it morphed into being called “dinner”. And we used to call a post-dinner snack “supper” but I don’t really do that anymore.
I’ve always used supper and dinner interchangeably.
Me too, but I have known people who have dinner for lunch and supper for dinner.
Ditto for the most part, although “supper” almost exclusively means dinner at home.
Dinner. But more importantly, what’s up with those percentages on the poll? 100% vote dinner, but those over 100% are welcome to vote otherwise.
Breakfast depending on how my day went.
Usually I call it dinner. Supper is acceptable but used much lesd.
This. But I do note that one could call a ‘very special’ lunch such as Thanksgiving or Xmas by the term ‘dinner’ also.
But I’ve never had supper at lunchtime. 
I’d always called it “dinner” until Pappy came to live with us. He’ll say “Dinner? But we had that at noon!” So I’ve started calling it supper now to avoid all the silliness.
It’s dinner. Supper can be used to.
The ‘noon’ meal is lunch.
‘Brunch’ is a late breakfast, early lunch. It’s not called Brinner.
That’s me, too. Dinner and supper both mean “the evening meal.” They are exact synonyms, with absolutely no difference in denotation or connotation.
Under no circumstances can “dinner” be eaten at midday. That’s lunch, I don’t care how big it is.
Always dinner. I’ve never used the word “supper” in my life. I’m assuming it is a regionalism (?)
My family calls it “supper” and so do I. I figure that that way it avoids confusion towards people who call the noon-time meal “dinner.” I don’t know if it’s a Canadianism, a Canadian regionalism, or just something my own family does.
For me, dinner is the evening meal. Supper is rarely used, has less of a distinct meaning, and so I would not be too surprised to hear it used to refer to a different meal. I would not call them exact synonyms.
I don’t have a cite but I’ve heard:
“Supper” any meal after noon
“Tea” 4 pm and you usually don’t have anything but tea and maybe a pastry.
“Dinner” any meal after 6 pm
La cena is the third meal of the day.
Otherwise with working a rotating scheduled of days and nights it becomes difficult to give a damn about what to call a particular meal.
In case it wasn’t clear, I was describing my own perceptions of the words. No one else is obliged to take my opinions as binding on them.
Although it would be nice if people did. 
I voted for “Dinner?”, but I usually just call it “Dinner” with no question mark.
Either dinner or supper means the evening meal. I always say dinner, though. That’s also what I hear most people say. My mom uses both, but probably leans toward supper a little more often. Maybe there is a generational component? My mom is 80; I’m 41.
The midday meal is always lunch for me. Here in the Midwest, I don’t think I’ve ever heard anyone call the midday meal anything other than lunch.