interest

interest — noun

1. your wish to learn more about a person, an idea, or an activity and stay engaged

1.nounA2
Definition

your wish to learn more about a person, an idea, or an activity and stay engaged with it

Example

Tamar showed a keen interest in ancient history from a very young age.

show + interest + in + topic

The children listened to the museum guide with great interest.

with + interest (prepositional phrase)

Common collocations
  • show interest in
  • take an interest in
  • lose interest
  • great interest
  • keen interest
  • spark interest
  • express interest
Synonyms
  • curiosity

    stronger desire to learn or know; more active and questioning

  • attention

    focus of the mind; less emotional than interest

  • fascination

    very strong interest that is hard to turn away from

  • concern

    interest mixed with worry or care

Antonyms

Grammar Patterns

interest + in + noun/gerund

show/express/take + interest + in

Usage Note

Commonly used with verbs like show, express, take, have, lose, and spark. The preposition in usually follows.

Common Mistakes

I have interest for soccer.
I have an interest in soccer.
The correct preposition is 'in', not 'for'.
I have a lot of interests on photography.
I have a great interest in photography.
Use 'interest in' for the feeling; 'interests' is for hobbies (sense 2).

2. the activities or subjects you enjoy doing or learning about in your free time

2.nounA2
Definition

the activities or subjects you enjoy doing or learning about in your free time

Example

Defne's main interests include hiking, reading, and playing the piano.

list of interests using 'include'

When asked about his interests, Jude mentioned cooking and traveling.

Common collocations
  • range of interests
  • share an interest
  • outside interests
  • common interests
  • broad interests
  • narrow interests
Synonyms
  • hobby

    an activity done regularly in one's leisure time for pleasure

  • pastime

    an activity that you do because you enjoy it

  • pursuit

    more formal; an activity you spend time doing

Grammar Patterns

interests + in + noun/gerund

have + interests + outside/beyond

Usage Note

Usually appears in the plural form (interests) when listing hobbies. The singular (interest) can also be used for a single activity.

Common Mistakes

My hobbies and interests is reading.
My hobbies and interests are reading.
'Interests' is plural and takes a plural verb.

3. the power of something to draw your notice and keep you curious about it

3.nounB1
Definition

the power of something to draw your notice and keep you curious about it

Example

The old town has a certain historical interest that draws visitors from abroad.

historical / cultural / scientific + interest

Élise found little interest in the lecture and struggled to stay awake through it.

find + little / no + interest + in

Common collocations
  • of interest
  • hold interest
  • historical interest
  • scientific interest
  • lasting interest
  • particular interest
Synonyms
  • appeal

    power to attract; often used for visual or emotional attraction

  • attraction

    something that draws attention; can be a physical feature

  • fascination

    a very strong power to hold attention

Antonyms
  • dullness

    lack of interesting quality

  • tedium

    the quality of being boring and tiresome

Grammar Patterns

be of + interest + to + person

hold + interest + for + person

Usage Note

Often used in the phrase 'be of interest' followed by 'to'. This sense describes a property of something rather than a feeling in someone.

Common Mistakes

This book is interest.
This book is of interest.' or 'This book is interesting.
You need 'of' before 'interest' or use the adjective 'interesting'.

4. something that helps you or gives you an advantage; the things that are good for

4.nounB1
Definition

something that helps you or gives you an advantage; the things that are good for a particular person or group

Example

The lawyer acted in the best interests of her young client throughout the trial.

in the (best) interests of

It is in everyone's interest to keep the public park clean and safe for children.

in + possessive + interest

Common collocations
  • in the interest of
  • best interests
  • serve interests
  • protect interests
  • against interests
  • self-interest
  • public interest
Synonyms
  • benefit

    something that produces good results; more general

  • advantage

    something that puts you in a better position than others

  • well-being

    the state of being comfortable, healthy, or happy

  • welfare

    formal; the health, happiness, and prosperity of a person or group

Antonyms
  • detriment

    formal; something that causes harm or damage

  • harm

    physical or mental damage; opposite of benefit

Grammar Patterns

in the + interests + of + noun

act in + possessive + (best) interests

Usage Note

Frequently appears in fixed phrases: 'in the interest(s) of', 'in someone's (best) interest', 'serve the interests of'. Often used in formal, business, or legal contexts.

Common Mistakes

It's for your interesting.
It's in your interest.
The adjective 'interesting' cannot replace the noun 'interest' here.
I did it for my own interesting.
I did it for my own interests.
Use the noun form after prepositions.

5. a percentage-based fee that lenders add to borrowed money, and that you must pay

5.nounB1
Definition

a percentage-based fee that lenders add to borrowed money, and that you must pay on top of the original amount

Example

The bank charges five percent interest on all personal loans.

interest + on + type of loan

Tamar paid off her credit card early to avoid paying high interest charges.

pay / avoid + interest (charges)

Common collocations
  • interest rate
  • interest on
  • pay interest
  • high interest
  • low interest
  • rate of interest
  • interest charges
  • interest payments
Synonyms
  • borrowing cost

    the total cost of taking out a loan, including interest and fees

  • finance charge

    the total cost of credit, including interest and other fees

  • APR

    annual percentage rate; a standard measure of borrowing cost

Grammar Patterns

interest + on + loan/credit/mortgage

pay + interest

rate of + interest

Usage Note

Interest in this sense is the cost of borrowing. It is often discussed as a 'rate' (percentage). Distinguish from sense 6 (money earned on savings).

Common Mistakes

I paid 5% interests on my loan.
I paid 5% interest on my loan.
'Interest' is uncountable when referring to money on loans or savings.
The interest of the loan is high.
The interest on the loan is high.
Use 'on' not 'of'.

6. the money added to your savings or investments by a bank, based on the amount yo

6.nounB1
Definition

the money added to your savings or investments by a bank, based on the amount you have deposited

Example

Nia earns two percent interest each year on her savings account at the local bank.

earn + interest + on + account type

The money in the fixed deposit account will gradually accumulate interest over several years.

accumulate interest

Common collocations
  • earn interest
  • interest on savings
  • accumulate interest
  • high-interest account
  • compound interest
  • interest payment
  • annual interest
Synonyms
  • yield

    the amount of money earned on an investment, shown as a percentage

  • return

    the profit you make from an investment

  • dividend

    a share of profits paid to shareholders; different from interest

Grammar Patterns

earn + interest + on + savings/investment

interest + on + account

Usage Note

This sense overlaps with sense 5 in many contexts (both involve money and percentages). Distinguish by perspective: sense 5 is what YOU pay when borrowing; this sense is what the BANK pays you for saving or investing.

Common Mistakes

I earned interests from my savings.
I earned interest on my savings.
Use 'on' for the source; 'interest' is uncountable.

7. a legal right to own part of a business or to receive some of its profits; a for

7.nounB2
Definition

a legal right to own part of a business or to receive some of its profits; a formal connection to property or a company

Example

Defne purchased a controlling interest in the family business to secure her position.

controlling / majority / minority + interest + in

The corporation sold all its interests in several overseas properties last quarter.

sell + possessive + interests + in + properties

Common collocations
  • controlling interest
  • majority interest
  • minority interest
  • conflict of interest
  • acquire an interest
  • sell an interest
  • interest in
Synonyms
  • stake

    a share or financial involvement in a business

  • shareholding

    the number of shares a person or organization owns in a company

  • equity

    the value of the shares issued by a company; ownership interest

Grammar Patterns

interest + in + company/property

have + an/controlling/majority + interest + in

Usage Note

Often used in business and legal contexts. A 'controlling interest' means owning enough shares to make decisions for the company. 'Conflict of interest' is a common fixed expression.

Common Mistakes

She bought interest in the company.
She bought an interest in the company.
'Interest' in this sense typically requires an article when used countably.
He has interest on the property.
He has an interest in the property.
Use 'in' not 'on'.
Idioms

done to achieve or maintain a particular result or benefit

In the interest of public safety, the city council decided to close the old bridge.

In the interests of fairness, the teacher listened to both sides of the argument before deciding.

a situation where a person's private interests could influence their professional decisions unfairly

The politician stepped down from the committee to avoid any conflict of interest.

The newspaper editor declared a conflict of interest because the story involved her cousin.

worth paying attention to; important or relevant

The professor's latest research may be of interest to climate scientists around the world.

The police asked anyone with information of interest to come forward and speak to them.

someone the police want to talk to because they may be involved in a crime

The police named a former employee as a person of interest in the robbery investigation.

to do something to someone with more force or energy than they showed towards you

Her brother teased her, and she returned the favor with interest the next day.

to care about what is best for someone and act to help them

Kabir knew his grandmother had his best interests at heart when she advised him to study harder.

A situation where a person's personal or professional duties clash, making it hard to be fair to both sides.

Mina refused to judge the contest because of a conflict of interest.

The politician's business deal created a clear conflict of interest with her public role.

To truly care about someone's well-being and want them to succeed, even if it doesn't always show.

Diego knew his coach had his interests at heart despite the tough training.

Does the company really have its employees' interests at heart with this new policy?

interest — verb

Word family

Synonym discussion

Sense: noun/1

Interest (noun/1) is the broadest term for the feeling of wanting to know or be involved. Curiosity is a stronger, more active desire to learn — you ask questions and investigate. For example, 'The child's curiosity about how clocks work led her to take one apart.' Concern adds a sense of worry or care to the mix: you take an interest because something matters to you personally. Fascination implies a powerfully absorbing interest that is hard to break away from — a scientist might have a fascination with how spiders build webs. Attention is more about the focus of the mind than the emotion behind it: you can pay attention to a lecture without being truly interested in it. Interest combines both the emotional pull and the mental focus, making it the most natural choice for everyday use.

Common collocations

Phrases

  • matter of interest
  • point of interest
  • interest rate
  • interest group
  • conflict of interest
  • in the interest of
  • of interest to

Prepositions

Etymology

LatinOld FrenchAnglo-FrenchEnglish

The word 'interest' comes from Latin 'interest', which literally means 'it is between' or 'it matters'. This was formed from 'inter-' (between) and 'esse' (to be). The Latin phrase 'interest' was used in legal contexts to mean 'it is of importance or concern.' Old French adopted it as 'interest' (later 'interest'), and English borrowed it in the 15th century. The financial sense (money paid for borrowing) developed in the 16th century from the idea of compensation for the inconvenience of lending. The sense of 'legal stake or share' also emerged from legal usage around the same time.