dress (someone) up
Definition: to put smart clothes on someone, usually for a special occasion.
(This phrasal verb has more than one meaning)
E.g.1: They dressed the child up in her best clothes and took her to the celebration.
E.g.2: Why do parents dress their children up in such fancy clothes? Simple, hard-wearing clothes would be much more practical.
This phrasal verb can be separated. (E.g. 1 and 2)