Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “thorn in your side”

thorn in your side

(also thorn in the side of someone)
someone or something that continually causes problems for you: Money problems have been a thorn in our side since the day we got married. Health inspectors are a thorn in the side of most restaurants.
(Definition of thorn in your side from the Cambridge Academic Content Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Word of the Day


When birds roost, they go somewhere to rest or sleep.

Word of the Day


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