Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “swear”

See all translations

swear

verb
 
 
/sweər/ ( past tense swore, past participle sworn)
BAD LANGUAGE [I] B2 to use language that people think is rude or offensive: He was sent home because he swore at the teacher. She swore loudly and threw the box on the floor.Swearing and blasphemy
PROMISE [I, T] B2 to make a serious promise: [+ to do sth] I swear to tell the truth. [+ (that)] She swore that she was at home at the time of the accident.Making and breaking promises and commitments
TRUE [T] used to say that you are sure something is true: [+ (that)] I could have sworn that she said she lived in Canterbury (= I was sure she lived in Canterbury, but now I have found that it is not true).Making and breaking promises and commitments
(Definition of swear from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “swear” in other dictionaries

Word of the Day

beginner's luck

unexpected success experienced by a person who is just starting a particular activity

Word of the Day

Think long and hard; the language of decisions

by Liz Walter,
January 28, 2015
One of the best ways (perhaps the best way) to improve your English is to learn how words go together in phrases, idioms, or other patterns such as verb/noun or adjective/noun pairs (often called ‘collocations’). This blog looks at some useful phrases and collocations connected with the subject of decisions, something we

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More