Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “straighten up”

straighten up

phrasal verb with straighten     /ˈstreɪtən/ verb [I, T]
to stand so that your back is straightSitting and standing
(Definition of straighten up from the Cambridge Learner's Dictionary © Cambridge University Press)

Translations of “straighten up”

Word of the Day

altruistic

showing a wish to help or bring advantages to others, even if it results in disadvantage for yourself

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More