dress up

verb

1. put on special clothes to appear particularly appealing and attractive"She never dresses up, even when she goes to the opera"
2. make something appear superficially attractive"The researcher tried to dress up the uninteresting data"
3. put a caparison on"caparison the horses for the festive occasion"
4. dress in a costume"We dressed up for Halloween as pumpkins"
5. dress in a certain manner"She dresses in the latest Paris fashion"