the main meal of the day served in the evening or at midday; "dinner will be at 8"; "on Sundays they had a large dinner when they returned from church"
a party of people assembled to have dinner together; "guests should never be late to a dinner party"
put on special clothes to appear particularly appealing and attractive; "She never dresses up, even when she goes to the opera"; "The young girls were all fancied up for the party"
make something appear superficially attractive; "The researcher tried to dress up the uninteresting data"; "Don't try to dress up the unpleasant truth"