Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “fever”

fever

noun [C or U] (ILLNESS)    /ˈfiː.vər/ US  /-vɚ/
B1 a medical condition in which the body temperature is higher than usual and the heart beats very fast: He's got a headache and a slight fever.Fevers and infectious diseasesColds and flu
(Definition of fever noun (ILLNESS) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of fever

Definitions of “fever” in other dictionaries

Word of the Day

pump iron

to lift heavy weights for exercise

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