Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “run sth in”

See all translations

run sth in

UK ( US break sth in)
verb uk phrasal verb with run   /rʌn/ ( present participle running, past tense ran, past participle run) us  
If you run in a vehicle, you use it carefully and slowly for a short time when it is new, so that you do not damage its engine.
(Definition of run sth in from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of run sth in?
Add Cambridge dictionaries to your browser to your website

Word of the Day

shampoo

a liquid used for washing hair, or for washing particular objects or materials

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

crossfit noun

March 23, 2015
high-intensity strength training Two women in strappy dresses discussed how much weight they could snatch

Read More