effective Meaning in the Cambridge English Dictionary Cambridge dictionaries logo
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “effective” in the English Dictionary

"effective" in British English

See all translations

effectiveadjective

uk   /ɪˈfek.tɪv/  us   /əˈfek.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   /ɪˈfek.tɪv.nəs/  us   /əˈfek.tɪv.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 intended results, or (of a person) skilled or able to do something well: an effective policy/strategy We’ve found that giving away samples of our product 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 law becomes 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 consumer council must have clear duties and strong powers 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

That’s fantastic! (Words meaning ‘very good’)
That’s fantastic! (Words meaning ‘very good’)
by ,
May 18, 2016
by Kate Woodford We all need words and phrases for saying that things are good or great – that we find them nice or very nice. This post aims to give you more ways to say that you like, or really like, something. Starting with a very frequent adjective; lovely is used a lot in UK English

Read More 

Word of the Day

parasol

a type of sunshade (= round frame covered in cloth on a stick) carried especially by women in the past, to give protection from the sun

Word of the Day

convo noun
convo noun
May 23, 2016
informal a conversation The convo around concussions mostly focuses on guys who play football, but Chastain thinks that this whole thing could be a headache for women too.

Read More