/ ˈstreɪtn; NAmE / verb
1.
straighten (sth) (out) to become straight; to make sth straight :
[ vn ]
I straightened my tie and walked in.
[ v ]
The road bends here then straightens out.
2.
straighten (sth) (up) to make your body straight and vertical :
[ vn ]
He stood up and straightened his shoulders.
I straightened myself up to answer the question.
[ v ]
Straighten up slowly, then repeat the exercise ten times.
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PHRASAL VERBS
- straighten sb out
- straighten sth out
- straighten sth up