dress up

US /ˌdres ˈʌp/
UK /ˌdres ˈʌp/
"dress up" picture
1.

着飾る, 仮装する

to put on special clothes, especially for a party or to play a role

:
The children love to dress up in their parents' old clothes.
子供たちは親の古い服を着飾るのが大好きです。
Are you going to dress up for the party tonight?
今夜のパーティーに着飾って行くの?
2.

飾り立てる, 美化する

to make something look more attractive or impressive than it really is

:
They tried to dress up the old house with new paint and decorations.
彼らは新しいペンキと装飾で古い家を飾り立てようとした。
He always tries to dress up his failures as learning experiences.
彼はいつも自分の失敗を学習経験として飾り立てようとする。