Englishfor English speakers
professional
Adjective
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About a job such as doctor, lawyer, accountant, etc.
The group offers free professional advice on legal matters and housing.
The government has established a new professional body to regulate doctors.
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If someone is professional, they do their job seriously and with much skill.
We employ friendly, professional staff who can offer the benefit of many years' experience .
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If someone is professional, they are paid for their job, sport, art, etc.
After playing amateur tennis for years, he turned professional at the age of 25.
professional
Noun
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A professional is a person who is paid for doing their job, sport, art, etc.
More and more the Olympics are allowing professionals to compete.
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A professional is a person who does a job such as doctor, lawyer, accountant, etc.
Professionals often spend years and hundreds of thousands of dollars in school.
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A professional is a person who is serious and skilled in their work.
You should get him to fix your car. He's a real professional.
association
Noun
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An association is a way that two things are similar, belong together, or are connected or related.
I don't see any association between what happened to you and what happened to me.
I suspect there is an association between the weather and the number who are sick.
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An association is a group of people who have a common goal or interest.
The NBA stands for the "National Basketball Association."
I have been a member of the American Psychological Association and the American Speech-Language-Hearing Association.
All the teachers were at an association meeting.
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Association is the when you associate (spend time with certain people).
I'm afraid your association with those wild people will get you in trouble.
of
Preposition
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Made using.
It is a house of cards.
diving
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noun
an athletic competition that involves diving into water
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noun
(= dive)
a headlong plunge into water
instructor
Noun
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An instructor is a person who instructs.