ALL meanings of straighten up
straight·en up
S s - intransitivephrasal verbs straighten up stand straighter 1
- transitivephrasal verb straighten up tidy 1
- intransitivephrasal verbs straighten up improve behaviour 1
- verb straighten up to become or cause to become erect 0
- verb straighten up to reform or become reformed 0
- noun straighten up to put in good order; make tidy 0