effective Meaning in the Cambridge English Dictionary Cambridge dictionaries logo

Meaning of “effective” in the English Dictionary

"effective" in British English

See all translations

effectiveadjective

uk   us   /ɪˈfek.tɪv/
  • effective adjective (SUCCESSFUL)

B2 successful or ​achieving the ​results that you ​want: It's an ​extremely effective ​cure for a ​headache. The ​lighting for the ​production made a very effective use of ​shadow. She's a very effective ​teacher.
Opposite

expend iconexpend iconMore examples

effectiveness
noun [U] uk   us   /-nəs/
C1 There are ​doubts about the effectiveness of the new ​drug (= how ​successful it is) in ​treating the ​disease.
(Definition of effective from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"effective" in American English

See all translations

effectiveadjective

 us   /ɪˈfek·tɪv/
  • effective adjective (PRODUCING RESULTS)

producing the ​intendedresults, or (of a ​person) ​skilled or ​able to do something well: an effective ​policy/​strategy We’ve ​found that giving away ​samples of ​ourproduct is the most effective way to ​promote it. She’s an effective ​administrator and ​knows how to get things done.
  • effective adjective (IN USE)

(of ​rules or ​laws) in ​official or ​legal use: The ​lawbecomes effective next ​month.
(Definition of effective from the Cambridge Academic Content Dictionary © Cambridge University Press)

"effective" in Business English

See all translations

effectiveadjective

uk   us   /ɪˈfektɪv/
successful in ​achieving the ​result that you want: You need a workable, effective ​strategy for ​developing your ​business. Personal charisma alone does not make someone an effective ​leader. The ​consumercouncil must have ​clearduties and ​strongpowers if it is to be effective.
having ​started to ​operate or be used: The new Investment Management Agreements became effective on 1st November. He announced his ​resignation, effective immediately.
[before noun] used to describe what is actually ​true, although it may not be intended or ​stated: The ​remainder of the ​stock is ​owned by a ​consortium of ​banks which are in effective ​control of the ​hotel.
(Definition of effective from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of effective?
Add Cambridge dictionaries to your browser to your website

“effective” in American English

“effective” in Business English

Word of the Day

drum

a musical instrument, especially one made from a skin stretched over the end of a hollow tube or bowl, played by hitting with the hand or a stick

Word of the Day

I used to work hard/I’m used to working hard (Phrases with ‘used to’)
I used to work hard/I’m used to working hard (Phrases with ‘used to’)
by Kate Woodford,
February 10, 2016
On this blog, we like to look at words and phrases in the English language that learners often have difficulty with. Two phrases that can be confused are ‘used to do something’ and ‘be used to something/doing something’. People often use one phrase when they mean the other, or they use the wrong

Read More 

farecasting noun
farecasting noun
February 08, 2016
predicting the optimum date to buy a plane ticket, especially on a website or using an app A handful of new and updated websites and apps are trying to perfect the art of what’s known as farecasting – predicting the best date to buy a ticket.

Read More