VS.

Efficient vs. Proficient

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Efficientadjective

Making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy.

‘An efficient process would automate all the routine work.’; ‘Our cleaners are almost too efficient: they throw away anything left out on a desk.’;

Proficientadjective

Good at something; skilled; fluent; practiced, especially in relation to a task or skill.

‘He was a proficient writer with an interest in human nature.’;

Efficientadjective

Expressing the proportion of consumed energy that was successfully used in a process; the ratio of useful output to total input.

‘The motor is only 20% efficient at that temperature.’;

Proficientnoun

An expert.

Efficientadjective

Causing effects, producing results; bringing into being; initiating change. (Rare except in philosophical and legal expression efficient cause = causative factor or agent.)

‘Ownership, maintenance, or use of the automobile need not be the direct and efficient cause of the injury sustained’;

Proficientnoun

One who has made considerable advances in any business, art, science, or branch of learning; an expert; an adept; as, proficient in a trade; a proficient in mathematics, music, etc.

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Efficientadjective

(proscribed, old use) Effective.

Proficientadjective

Well advanced in any branch of knowledge or skill; possessed of considerable acquirements; well-skilled; versed; adept,

Efficientadjective

Causing effects; producing results; that makes the effect to be what it is; actively operative; not inactive, slack, or incapable; characterized by energetic and useful activity; as, an efficient officer, power.

‘The efficient cause is the working cause.’;

Proficientadjective

having or showing knowledge and skill and aptitude;

‘adept in handicrafts’; ‘an adept juggler’; ‘an expert job’; ‘a good mechanic’; ‘a practiced marksman’; ‘a proficient engineer’; ‘a lesser-known but no less skillful composer’; ‘the effect was achieved by skillful retouching’;

Efficientnoun

An efficient cause; a prime mover.

‘God . . . moveth mere natural agents as an efficient only.’;

Proficientadjective

competent or skilled in doing or using something

‘I was proficient at my job’; ‘she felt reasonably proficient in Italian’;

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Efficientadjective

being effective without wasting time or effort or expense;

‘an efficient production manager’; ‘efficient engines save gas’;

Proficientnoun

a person who is proficient

‘he became a proficient in Latin and Greek’;

Efficientadjective

able to accomplish a purpose; functioning effectively;

‘people who will do nothing unless they get something out of it for themselves are often highly effective persons...’; ‘effective personnel’; ‘an efficient secretary’; ‘the efficient cause of the revolution’;

Efficientadjective

(of a system or machine) achieving maximum productivity with minimum wasted effort or expense

‘more efficient processing of information’;

Efficientadjective

preventing the wasteful use of a particular resource

‘an energy-efficient heating system’;

Efficientadjective

(of a person) working in a well-organized and competent way

‘an efficient administrator’;

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