dual
gb/dˈul/ us/dˈul/
B1
英語
~ 2800
語義
0件の語義
adjective
B1
property
1
Having two parts or aspects
Having two parts or two sides.
用法パターン：
[something] is dual
よくある間違い：
Learners sometimes confuse 'dual' with 'double'. 'Dual' refers to two distinct roles or aspects, while 'double' often refers to quantity or size.
類義語
double (Double can mean two of something in quantity, but is less often used for abstract roles or purposes.)
対義語
single (Single refers to only one part, role, or aspect.)
コロケーション
dual role
|dual purpose
|dual function
|dual nationality
|dual system
テーマ
general
|comparison
|structure
|core_vocabulary
例文
- She holds dual citizenship in Canada and France.
- The device has a dual purpose: recording and playback.
- He played a dual role in the movie.
- The course offers dual benefits for students and teachers.
- The city has a dual water supply system.
学習者向け例文
- I have dual citizenship.
- This phone has a dual camera.
- He has a dual role at work.
- The machine has a dual function.
- She has a dual job.
adjective
technical
C1
property
2
Relating to grammatical number two
In grammar, used to talk about exactly two things.
よくある間違い：
Learners may confuse 'dual' in grammar with 'plural'. Dual is specifically for two, not more than two.
類義語
binary (Binary can mean involving two things, but is broader and not limited to grammar.)
対義語
singular (Singular refers to one item in grammar.)
コロケーション
dual form
|dual number
|dual pronoun
テーマ
linguistics
|grammar
|education
|communication
例文
- Some languages have a dual form for nouns and pronouns.
- The dual number is rare in modern European languages.
- Arabic uses the dual for exactly two items.
- Classical Greek had a dual case system.
- The pronoun has separate forms for singular, dual, and plural.
学習者向け例文
- Some languages have a dual form.
- Dual means only two in grammar.
- The word changes in the dual form.
- Arabic uses the dual for two things.
- Greek had a dual number.
文法
表現
dual purpose
1/dˈul pˈɚpəs/
fixed phrase
Having two uses or goals
Used for two different things or goals.
例文
- This tool serves a dual purpose: cutting and measuring.
- The program has a dual purpose of education and entertainment.
dual role
1/dˈul ɹˈoʊl/
fixed phrase
One person with two roles
When one person does two different jobs or acts in two ways.
例文
- She played a dual role as both director and actor.
- His dual role made him very busy.
dual citizenship
1/dˈul sˈɪtɪzənʃˌɪp/
fixed phrase
Being citizen of two countries
When someone is a citizen of two countries at the same time.
例文
- He has dual citizenship in the US and Italy.
- Because her parents are from different countries, she has dual citizenship.
- Dual citizenship can make travel easier.
- The new law makes it easier to keep dual citizenship.