C1 noun Neutral

indicator

/ˈɪndɪkeɪtə(r)/

A sign, signal, or piece of information that points to the state, level, or existence of something else. It is often used to describe a quantifiable measure or a physical device that shows a change in condition or performance.

Examples

3 of 5
1

High fuel consumption is usually a reliable indicator that your car engine needs a service.

High fuel consumption is usually a reliable indicator that your car engine needs a service.

2

The decline in indigenous bird populations serves as a critical indicator of environmental degradation.

The decline in indigenous bird populations serves as a critical indicator of environmental degradation.

3

The way he avoids eye contact is a pretty good indicator that he's lying.

The way he avoids eye contact is a pretty good indicator that he's lying.

Word Family

Adj
indicative
Adv
indicatively
Noun
indicator
Verb
indicate
Related
indication
💡

Memory Tip

Think of your car's 'indicator' light—it's a specific tool that points (indicates) exactly where you are going.

Quick Quiz

The unemployment rate is a major economic ______ that the government watches closely.

Correct!

The correct answer is: indicator

Examples

1

High fuel consumption is usually a reliable indicator that your car engine needs a service.

everyday

High fuel consumption is usually a reliable indicator that your car engine needs a service.

2

The decline in indigenous bird populations serves as a critical indicator of environmental degradation.

formal

The decline in indigenous bird populations serves as a critical indicator of environmental degradation.

3

The way he avoids eye contact is a pretty good indicator that he's lying.

informal

The way he avoids eye contact is a pretty good indicator that he's lying.

4

Standardized test scores are frequently utilized as a primary indicator of academic achievement in longitudinal studies.

academic

Standardized test scores are frequently utilized as a primary indicator of academic achievement in longitudinal studies.

5

Our quarterly churn rate is the most important indicator of customer dissatisfaction.

business

Our quarterly churn rate is the most important indicator of customer dissatisfaction.

Word Family

Adj
indicative
Adv
indicatively
Noun
indicator
Verb
indicate
Related
indication

Common Collocations

leading indicator leading indicator
economic indicator economic indicator
performance indicator performance indicator
reliable indicator reliable indicator
visual indicator visual indicator

Common Phrases

key performance indicator

key performance indicator

social indicator

social indicator

status indicator

status indicator

Often Confused With

indicator vs indication

An indication is a general hint or sign, whereas an indicator is a specific tool, device, or quantifiable measure.

📝

Usage Notes

At a C1 level, prioritize using this word when discussing data, scientific results, or professional performance metrics. It implies a more formal and precise measurement than 'sign'.

⚠️

Common Mistakes

Learners often use 'indication' when referring to a technical metric or a car's blinker; in these specific cases, 'indicator' is the correct term.

💡

Memory Tip

Think of your car's 'indicator' light—it's a specific tool that points (indicates) exactly where you are going.

📖

Word Origin

Derived from the Latin 'indicare', meaning 'to point out' or 'make known'.

Grammar Patterns

Countable noun Often followed by the preposition 'of' Commonly used in plural form when discussing multiple metrics
🌍

Cultural Context

In British and Australian English, 'indicator' is the standard term for a vehicle's turn signal (blinker).

Quick Quiz

The unemployment rate is a major economic ______ that the government watches closely.

Correct!

The correct answer is: indicator

Related Words

to

A1

Used to indicate the place, person, or thing that someone or something moves toward. It can also mark the recipient of an action or the limit of a range.

and

A1

A primary conjunction used to connect words, phrases, or clauses that are grammatically equal. It indicates addition, a sequence of events, or a relationship between two things.

a

A1

A word used before a singular noun that is not specific or is being mentioned for the first time. It is used only before words that begin with a consonant sound to indicate one of something.

that

A1

This word is a demonstrative pronoun used to indicate a specific person, object, or idea that is further away in space or time from the speaker. It is also used to refer back to something that has already been mentioned or to introduce a clause that identifies something.

I

A1

The pronoun 'I' is used by a speaker or writer to refer to themselves as the subject of a verb. It is the first-person singular subject pronoun in English and is always capitalized regardless of its position in a sentence.

for

A1

Used to show who is intended to have or use something, or to explain the purpose or reason for an action. It is also frequently used to indicate a specific duration of time.

not

A1

A function word used to express negation or denial. It is primarily used to make a sentence or phrase negative, often following an auxiliary verb or the verb 'to be'.

with

A1

A preposition used to indicate that people or things are together, in the same place, or performing an action together. It can also describe the instrument used to perform an action or a characteristic that someone or something has.

he

A1

A pronoun used to refer to a male person or animal that has already been mentioned or is easily identified. It functions as the subject of a sentence.

you

A1

Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.

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