Function: intransitive verb
Date: before 12th century
1 : to rise to a standing position
2 : to remain sound and intact under stress, attack, or close scrutiny
transitive verb : to fail to keep an appointment with
– stand up for : to defend against attack or criticism
– stand up to
1 : to meet fairly and fully
2 : to face boldly
– stand up with : to be best man or maid of honor for at a wedding ceremony