straighten up

listen to the pronunciation of straighten up
Englisch - Türkisch
Englisch - Englisch
To become straight, or straighter

bank the big cruiser into the first of a series of corners, make a few quick left, right, left transitions, then the road straightens up for a stretch.

to tidy; tidy up

The lockers were all standing wide open with equipment and uniforms scattered all over the room, he had left a note under the bottle telling me to straighten up the room, then straighten myself up before coming to work the next day.

To clarify
to steer straight

He said As I came out of the bend I went to straighten up the car and it just seemed to be carrying on turning..

to sit up straight, to stop hunching

Horse skin smells good. Lay your cheek against his neck and have a good cuddle. Now straighten up slowly again, and sit loosely.

to deal with; put in order

The Postal Service sent a special task force to straighten up the city's problems with a back-to-basics approach.

to start living a reformed life
straighten oneself; "He drew himself up when he talked to his superior"
see straighten 2
stand up straight, correct one's posture
straighten up