straighten up or out

1 to change one's behavior or character for the better I hope that rehab will help her straighten up for good Synonyms amend, mend, shape up, reform (up or out)Related Words behave, regenerate; better, improveNear Antonyms backslide, regress

2 to make neat a directive for everyone to straighten up their cubicle in preparation for a visit from some corporate VIPs Synonyms pick up, redd (up or out) [chiefly dialect], spruce (up), neaten (up or out), tidy (up), trimRelated Words arrange, array, classify, codify, dispose, draw up, marshal (also marshall), order, organize, range, systematizeNear Antonyms disarrange, disarray, discompose, dishevel, disorder, disorganize, disrupt, disturb, jumble, mess (up), mix (up), muddle, muss, rumple, scramble, shuffle, tousle, tumble, upset