expert
An expert is a person who has a very high level of knowledge or skill in a particular subject or activity. This person has usually studied the topic for a long time or has many years of practical experience.
Examples
3 of 5My father is an expert at fixing old cars.
My dad is very good at repairing old vehicles.
The government consulted an expert on public health.
The government asked a specialist for advice about health.
You should ask Sarah for help; she's a total expert with computers.
Sarah knows everything about computers, so ask her.
Synonyms
Word Family
Memory Tip
Connect 'EXpert' with 'EXperience'. You need a lot of EXperience to become an EXpert.
Quick Quiz
If you have a complicated legal problem, you should talk to a legal ______.
Correct!
The correct answer is: expert
Examples
My father is an expert at fixing old cars.
everydayMy dad is very good at repairing old vehicles.
The government consulted an expert on public health.
formalThe government asked a specialist for advice about health.
You should ask Sarah for help; she's a total expert with computers.
informalSarah knows everything about computers, so ask her.
According to the expert, the painting was created in the 15th century.
academicThe specialist said the painting is from the 1400s.
We hired a marketing expert to help us sell our new product.
businessWe employed a professional to improve our sales strategy.
Synonyms
Word Family
Common Collocations
Common Phrases
an expert in
someone with deep knowledge in a field
an expert on
someone who knows a lot about a specific topic
expert at
someone who is very good at doing a specific action
Often Confused With
A professional is someone who gets paid for their work, while an expert is someone who has the highest level of skill (though people are often both).
Usage Notes
Use 'expert in' for fields of study (biology, history) and 'expert at' for skills or activities (cooking, dancing). The word can be used as both a noun (a person) and an adjective (describing a skill).
Common Mistakes
Learners often forget to use 'an' instead of 'a' before 'expert' because it starts with a vowel sound. Also, do not confuse the noun 'expert' with the noun 'expertise' (the knowledge itself).
Memory Tip
Connect 'EXpert' with 'EXperience'. You need a lot of EXperience to become an EXpert.
Word Origin
From the Latin word 'expertus', which is the past participle of 'experiri', meaning 'to try' or 'to test'.
Grammar Patterns
Cultural Context
In many Western cultures, experts are frequently featured on news programs to provide authoritative commentary on current events.
Quick Quiz
If you have a complicated legal problem, you should talk to a legal ______.
Correct!
The correct answer is: expert
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