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efficiency

noun

Simple meaning

Getting results with as little wasted time, effort or money as possible.

Pronunciation

Say it like this:

ihfishuhnsee

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IPA pronunciation (US)

ɪˈfɪʃənsi

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. The extent to which a resource is used for the intended purpose.

  2. The extent to which time is well used for the intended task.

  3. engineeringphysics

    The ratio of useful work to energy expended. Often given the symbol η.

  4. us

    A one-room apartment.

Word at a Glance

Difficulty
A2 · Elementary (estimated)
Frequency
Common
Typical Use
General English

More ways to use efficiency

  • “She did the work with great efficiency.”noun

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Common Patterns and Combinations

How this word naturally appears with others.

thermal efficiencyquantum efficiencyenergy efficiencygreater efficiencyhigh efficiencymaximum efficiencyincreased efficiencyrelative efficiency

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

  • efficiency apartmentnounCompound term

    A furnished apartment with a kitchenette and bathroom.

  • efficiency engineernounCompound term

    An expert in increasing the efficient use of machines and personnel.

  • efficiency expertnounCompound term

    An expert in increasing the efficient use of machines and personnel.

More about this wordSynonyms, forms, origin

Antonyms

Sense: extent to which a resource is used for the intended purpose

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.