straighten

[streyt-n] /ˈstreɪt n/
verb (used with object), verb (used without object)
1.
to make or become straight in direction, form, position, character, conduct, condition, etc. (often followed by up or out).
Origin
1535-45; straight + -en1
Related forms
straightener, noun
overstraighten, verb
prestraighten, verb (used with object)
restraighten, verb
unstraightened, adjective
well-straightened, adjective
British Dictionary definitions for straighten up

straighten up

verb (adverb)
1.
to become or cause to become erect
2.
(mainly US) to reform or become reformed

straighten

/ˈstreɪtən/
verb sometimes foll by up or out
1.
to make or become straight
2.
(transitive) to make neat or tidy: straighten your desk
Derived Forms
straightener, noun
Word Origin and History for straighten up

straighten

v.

1540s, from straight + -en (1). Related: Straightened; straightening.

Slang definitions & phrases for straighten up

straighten up

verb phrase

CLEAN UP one's ACT (1907+)


Idioms and Phrases with straighten up

straighten up

Make tidy, as in Let's get this room straightened up. [ Second half of 1800s ]