C1noun 2K

Efficiency

🇬🇧 UK /["/ɪˈfɪʃnsi/"]/ 🇺🇸 US /["/ɪˈfɪʃnsi/"]/

Meaning of Efficiency

the quality of doing something well with no waste of time or money

In simple words: How well a task is done with the least waste of time and resources.

Efficiency in a sentence

• The efficiency of the new engine significantly reduces fuel consumption.
• Improving workplace efficiency leads to higher productivity and lower costs.
• Efficiency in energy use is a critical factor in sustainable building design.
• They hired a consultant to analyze the efficiency of their supply chain.
• Efficiency is often measured by the ratio of output to input in a process.

How to use Efficiency

Use 'efficiency' in both formal and informal contexts when discussing productivity. Avoid using it in casual conversations that don't concern work or processes.

Grammar pattern

standalone noun

Memory hint

Think of 'efficiently' — doing tasks quickly with no waste, like a well-oiled machine.

Related words

Collocations with Efficiency

• ruthless
• great
• high
• achieve
• maintain
• demonstrate
• drive
• measures
• benefits
• with efficiency
• efficiency in
• ruthless
• great
• high
• achieve
• maintain
• demonstrate
• drive
• measures
• benefits
• with efficiency
• efficiency in

Synonyms for Efficiency

• productivity
• effectiveness
• performance
• competence
• capability

Opposites of Efficiency

• inefficiency
• wastefulness
• unproductiveness

Common mistakes with Efficiency

• Confused with 'efficacy', which refers to the ability to produce a desired result.
• Using 'efficient' instead of 'efficiency' incorrectly in phrases.
• Overusing in casual conversation where simpler terms like 'speed' might suffice.

Frequently asked questions about Efficiency

What does Efficiency mean?

How well a task is done with the least waste of time and resources.

What is the definition of Efficiency?

the quality of doing something well with no waste of time or money

How do you use Efficiency in a sentence?

The efficiency of the new engine significantly reduces fuel consumption.

Can you give another example of Efficiency?

Improving workplace efficiency leads to higher productivity and lower costs.

What are synonyms for Efficiency?

Common alternatives include productivity, effectiveness, performance, competence, capability.

What is the opposite of Efficiency?

Opposite meanings include inefficiency, wastefulness, unproductiveness.

What words go with Efficiency?

It commonly pairs with ruthless, great, high, achieve, maintain, demonstrate, drive, measures, benefits, with efficiency, efficiency in, ruthless, great, high, achieve, maintain, demonstrate, drive, measures, benefits, with efficiency, efficiency in.

What are common mistakes when using Efficiency?

Confused with 'efficacy', which refers to the ability to produce a desired result. Using 'efficient' instead of 'efficiency' incorrectly in phrases. Overusing in casual conversation where simpler terms like 'speed' might suffice.

How do you pronounce Efficiency?

US: /["/ɪˈfɪʃnsi/"]/, UK: /["/ɪˈfɪʃnsi/"]/. Listen to the audio above to hear native pronunciation.

When should I use Efficiency?

Use 'efficiency' in both formal and informal contexts when discussing productivity. Avoid using it in casual conversations that don't concern work or processes.

What CEFR level is Efficiency?

"Efficiency" is at C1 level on the CEFR scale.