get up is a verb meaning "rise to one's feet". It carries 8 recorded senses.
rise to one's feet
“The audience got up and applauded”
get up and out of bed
“I get up at 7 A.M. every day”
“They rose early”
“He uprose at night”
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”
Definitions, synonyms and semantic relations for get up come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.