...effective street lighting.
...an effective mosquito repellent.
You need a very efficient production manager.
Engines and cars can be made more efficient.
Useful english dictionary. 2012.
effective, efficient, effectual — Effective refers to something that has the power to produce, or that actually does produce, an effect or result: This medicine is an effective remedy for acid indigestion. Efficient implies the use of energy, skill, or industry to accomplish a… … Dictionary of problem words and expressions
efficient — capable of producing the desired effect, late 14c., making, producing immediate effect, from O.Fr. efficient and directly from L. efficientem (nom. efficiens) effective, efficient, producing, active, prp. of efficere work out, accomplish (see… … Etymology dictionary
effective — See affective. See affective, effective See effective, efficient, effectual … Dictionary of problem words and expressions
efficient — See effective, efficient, effectual … Dictionary of problem words and expressions
effective — effective, effectual, efficient, efficacious all mean producing or capable of producing a result or results, but they are not freely interchangeable in idiomatic use. Effective emphasizes the actual production of an effect or the power to produce … New Dictionary of Synonyms
effective — effective, effectual, efficacious, efficient 1. All these words mean ‘having an effect’ of some kind, but with different applications and shades of meaning. Effective means ‘having a definite or desired effect’ that is actual rather than… … Modern English usage
efficient — effective, effectual, efficacious, efficient 1. All these words mean ‘having an effect’ of some kind, but with different applications and shades of meaning. Effective means ‘having a definite or desired effect’ that is actual rather than… … Modern English usage
efficient — ef‧fi‧cient [ɪˈfɪʆnt] adjective MANUFACTURING 1. producing goods using as little time, money etc as possible: • The United States has developed the most efficient methods of food production and distribution. • Is this really an efficient use of… … Financial and business terms
effective — ef·fec·tive adj 1: producing a desired effect an effective revocation of the contract 2: capable of bringing about an effect effective assistance of counsel see also ineffective assistance o … Law dictionary
effective — [e fek′tiv, ifek′tiv; ] often [ ēfek′tiv, əfek′tiv] adj. [ME & OFr effectif < L effectivus] 1. having an effect; producing a result 2. producing a definite or desired result; efficient 3. in effect; operative; active 4. actual, not merely… … English World dictionary
