straighten

verb

1. 1

   put (things or places) in order

   Tidy up your room!

2. 2

   make straight or straighter

   Straighten this post

   straighten hair

3. 3

   make straight

4. 4

   straighten by unrolling

   roll out the big map

5. 5

   get up from a sitting or slouching position

   The students straightened when the teacher entered

6. 6

   straighten up or out; make straight