STRAIGHTEN

v. 1. выпрямлять(ся) (тж. straighten out); Why does she spend so much time and money trying to straighten out the waves in her hair? 2. выправлять, приводить в порядок (тж. straighten out); I hope the misunderstanding will soon be straightened out. 3. собир. исправиться (тж. straighten out); A warning from the judge should help to straighten him out.