domain
A specific area of knowledge, activity, or interest that a person or organization specializes in or controls. It can also refer to a physical territory under a ruler or a unique address used to identify a location on the internet.
Examples
3 of 5Choosing the right domain name is essential for building a recognizable brand online.
Selecting the correct website address is vital for creating a well-known brand on the internet.
The monarch's domain encompassed all the lands from the mountains to the sea.
The territory ruled by the king included all the areas between the mountains and the ocean.
I don't know much about fixing cars; that's more my brother's domain.
I lack knowledge about car repair; that is an area my brother is better at.
Word Family
Memory Tip
Think of a 'Dome' covering your 'Main' area of expertise. Everything under that dome is your domain.
Quick Quiz
The professor is widely respected because she possesses deep ___ expertise in quantum mechanics.
Correct!
The correct answer is: domain
Examples
Choosing the right domain name is essential for building a recognizable brand online.
everydaySelecting the correct website address is vital for creating a well-known brand on the internet.
The monarch's domain encompassed all the lands from the mountains to the sea.
formalThe territory ruled by the king included all the areas between the mountains and the ocean.
I don't know much about fixing cars; that's more my brother's domain.
informalI lack knowledge about car repair; that is an area my brother is better at.
This research contributes to the cognitive domain of developmental psychology.
academicThis study adds information to the specific field of psychology concerned with mental development.
Our company needs to hire someone with significant domain expertise in renewable energy.
businessOur firm must employ a person with extensive professional knowledge in the field of clean energy.
Word Family
Common Collocations
Common Phrases
in the public domain
available for public use because copyright has expired or never existed
outside of one's domain
beyond a person's area of knowledge or responsibility
eminent domain
the right of a government to take private property for public use
Often Confused With
Dominion refers specifically to the power or right of governing, while domain usually refers to the area or field itself.
Usage Notes
In academic contexts, 'domain' is frequently used to categorize different types of learning or research areas. In technology, it almost always refers to a web address.
Common Mistakes
Learners sometimes use 'domain' when they mean a literal physical 'room' or 'house'; remember it refers to a broader territory or a conceptual field of knowledge.
Memory Tip
Think of a 'Dome' covering your 'Main' area of expertise. Everything under that dome is your domain.
Word Origin
Derived from the Old French 'domaine' and the Latin 'dominium', which means property or right of ownership.
Grammar Patterns
Cultural Context
The concept of 'public domain' is vital in global copyright law, determining when creative works like books or music can be freely shared by everyone.
Quick Quiz
The professor is widely respected because she possesses deep ___ expertise in quantum mechanics.
Correct!
The correct answer is: domain
Related Vocabulary
Related Words
to
A1Used 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
A1A 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
A1A 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
A1This 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
A1The 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
A1Used 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
A1A 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
A1A 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
A1A 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
A1Used 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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