Effective definition and meaning | Collins English Dictionary

Effective definition: Something that is effective works well and produces the results that were intended . | Meaning, pronunciation, translations and ... EnglishDictionary Thesaurus WordLists Grammar EnglishEasyLearningGrammar GrammarPatterns EnglishUsage TeachingResources VideoGuides Conjugations Quiz Englishgrammar Englishcollocations Englishconfusables Englishidioms Englishusage Thematicwordlists English French German Italian Spanish Portuguese Hindi Chinese Definitionof 'effective'    WordFrequency Share× Credits× effective (ɪfektɪv ) 1. adjective Somethingthatiseffectiveworkswellandproducestheresultsthatwereintended. Homoeopathictreatmentcanbeeffectiveintreatingvirtuallyanyillness.[+in] Simpleantibioticsareeffectiveagainstthisorganism.[+against] ...aneffectivepublictransportsystem. Synonyms:efficient,successful,useful,active MoreSynonymsofeffective effectively adverb[usuallyADVERBafterverb,oftADV-ed]...theteamroleswhichyoubelievetobenecessaryfortheteamtofunctioneffectively. Servicesneedtobemoreeffectivelyorganisedthantheyareatpresent. Synonyms:efficiently,successfully,skilfully,ably MoreSynonymsofeffective effectiveness uncountablenoun...theeffectivenessofcomputersasaneducationaltool.[+of] Synonyms:power,effect,efficiency,success MoreSynonymsofeffective 2. adjective[ADJECTIVEnoun] Effectivemeanshavingaparticularroleorresultinpractice,thoughnotofficiallyorintheory. Theyhavehadeffectivecontroloftheareasincethesecurityforcesleft. Therestructuringresultedinaneffectiveincreaseonfares. Synonyms:virtual,essential,practical,implied MoreSynonymsofeffective 3. adjective[verb-linkADJECTIVE] Whensomethingsuchasalaworanagreementbecomeseffective,itbeginsofficiallytoapplyorbevalid. Thenewruleswillbecomeeffectiveinthenextfewdays. Synonyms:inoperation,official,current,legal MoreSynonymsofeffective MoreSynonymsofeffective COBUILDAdvancedEnglishDictionary.Copyright©HarperCollinsPublishers Video:pronunciationof effective Youmayalsolike EnglishQuizConfusables Synonymsof'effective' LanguageLover'sBlog FrenchTranslationof'effective' Translateyourtext PronunciationPlaylists Wordoftheday:'Lucy' HindiTranslationof'effective' NEWfromCollins! EnglishGrammar CollinsApps WordFrequency effectiveinBritishEnglish (ɪˈfɛktɪv ) adjective1. productiveoforcapableofproducingaresult 2. ineffect;operative effectivefrommidnight 3. producingastrikingimpression;impressive aneffectiveentrance 4. (prenominal) actualratherthantheoretical;real theeffectiveincomeafterdeductions 5. (ofamilitaryforce,etc)equippedandpreparedforaction 6. physics (ofanalternatingquantity)havingavaluethatisthesquarerootofthemeanofthesquaresofthemagnitudemeasuredateachinstantoveradefinedperiodoftime,usuallyonecycleSeealsorootmeansquare noun7. aservicemanwhoisequippedandpreparedforaction CollinsEnglishDictionary.Copyright©HarperCollinsPublishers Derivedformseffectively(efˈfectively)adverb effectiveness(efˈfectiveness)oreffectivity(ɪˌfɛkˈtɪvɪtɪ)noun WordFrequency effectiveinAmericanEnglish (ɛˈfɛktɪv ;ɪˈfɛktɪv ;ofteniˈfɛktɪv ;əˈfɛktɪv ) adjective1.  havinganeffect;producingaresult 2.  producingadefiniteordesiredresult;efficient 3.  ineffect;operative;active 4.  actual,notmerelypotentialortheoretical 5.  makingastrikingimpression;impressive 6.  equippedandreadyforcombat noun7.  asoldier,unit,etc.equippedandreadyforcombat usuallyusedinpl. SYNONYMYNOTE:effectiveisappliedtothatwhichproducesadefiniteeffectorresult[aneffectivespeaker];efficaciousreferstothatwhichiscapableofproducingthedesiredeffectorresult[anefficaciousremedy];effectualspecificallyimpliestheproductionofthedesiredeffectorresultinadecisive manner[aneffectualreplytohischarge];efficientimpliesskillandeconomyofenergyinproducingthedesiredresultandisoften appliedtopersons[anefficientworker]OPPOSITE: futile Webster’sNewWorldCollegeDictionary,4thEdition.Copyright©2010by HoughtonMifflinHarcourt.Allrightsreserved. Derivedformseffectively(efˈfectively) adverb effectiveness(efˈfectiveness) noun WordoriginME&OFreffectif