Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “rash”

rash

noun uk   /ræʃ/ us  

rash noun (SKIN CONDITION)

C2 [C or U] a lot of small red spots on the skin: I've got an itchy rash all over my chest. He came out/up in a rash after he fell in a patch of nettles. If you stay in the sun too long you'll get (a) heat rash.

rash noun (LARGE NUMBER)

a rash of sth a large number of unpleasant events of the same type: There has been a rash of robberies/accidents/complaints in the last two months.

rash

adjective uk   /ræʃ/ us  
C2 careless or unwise, without thought for what might happen or result: That was a rash decision - you didn't think about the costs involved. [+ to infinitive] I think it was a bit rash of them to get married when they'd only known each other for a few weeks.
rashly
adverb uk   /ˈræʃ.li/ us  
rashness
noun [U] uk   /ˈræʃ.nəs/ us  
In a moment of rashness, I agreed to do a parachute jump for charity.
(Definition of rash from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of rash?
Add Cambridge dictionaries to your browser to your website

Definitions of “rash” in other dictionaries

Word of the Day

look on the bright side

to find good things in a bad situation

Word of the Day

The language of work

by Kate Woodford,
October 15, 2014
Most of us talk about our jobs. We tell our family and friends interesting or funny things that have happened in the workplace (=room where we do our job), we describe – and sometimes complain about – our bosses and colleagues and when we meet someone for the first time, we tell

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More