Evening meal is dinner (if out) or supper (if home), according to my parents.
Unless you have guests, when it's dinner at home, too.
( Monty Boyce, My cheese game is strong, Tue 16 Nov 2010, 11:29, 3 replies, latest was 15 years ago)

Oh god, I forgot about supper. I sometimes but rarely use that.

( Lampito rise with the moon, go to bed with the sun, Tue 16 Nov 2010, 11:31, Reply)

Supper's usually the last meal of the day
Dinner being the main meal of the day and lunch being a light jobbie between breakfast and dinner. Hence the interchangeability of dinner between afternoon and evening meals.

I usually say supper.

Edit: But that's just because I think dinner sounds horribly prole-ish.
( Kroney, Tue 16 Nov 2010, 11:36, Reply)

If I'm having my main meal in the evening
it's breakfast, lunch, dinner; if I'm having it in the middle of the day it's breakfast, dinner, tea.

Simple!
( The Light in Chains don't touch the Pope's boner, Tue 16 Nov 2010, 11:45, Reply)