Synonyms of 'straighten'
Phrasal verbsstraighten something out
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If you arrange things somewhere, you place them in a particular position, usually in order to make them look attractive or tidy.
He started to arrange the books in piles.
to make neat; tidy
Trim and neaten the edges of the fabric.
Thesaurus for straighten from the Collins English Thesaurus
If you straighten something, you make it tidy or put it in its proper position .