Double vs Dual vs Twice

Quando usar cada um em inglês, com significado, registro e exemplos.

Double

Top 1000 (muito comum) A2 adjective

Dual

Top 3000 (comum) C1 adjective

Twice

Top 1000 (muito comum) A1 adverb

	Double	Dual	Twice
Pronúncia	🇬🇧 /["/ˈdʌbl/"]/ 🇺🇸 /["/ˈdʌbl/"]/	🇬🇧 /["/ˈdjuːəl/"]/ 🇺🇸 /["/ˈduːəl/"]/	🇬🇧 /["/twaɪs/"]/ 🇺🇸 /["/twaɪs/"]/
Significado	Twice as much or two of something.	Having two parts or aspects.	Two times.
Exemplo	He ordered a double espresso to stay awake during the meeting.	his dual role as composer and conductor	She has been to Paris twice.
Registro	Neutro	Neutro	Neutro
Quão comum	Top 1000 (muito comum)	Top 3000 (comum)	Top 1000 (muito comum)
Nível CEFR	A2	C1	A1
Classe gramatical	adjective	adjective	adverb
Colocações	double check, double take, double down	dual citizenship, dual role, dual purpose, dual language, dual system	per day, as often, a month
Antônimos	single, one	single, sole	once
Erros comuns	Using 'double' for three times or more instead of just two., Confusing 'double' with 'duplicate' which has a different meaning.	Used incorrectly as a synonym for 'double', Confused with 'duel', which refers to a fight, Misplaced in informal contexts	Confused with 'two times' — learners might use both interchangeably incorrectly., Using in wrong tense — e.g., 'I do it twice yesterday.', Using with singular nouns — e.g., 'twice a day' instead of 'twice per day.'
Notas de uso	Use 'double' when referring to something that is twice the amount or size. It's suitable for formal and informal contexts, but avoid it in very casual conversations where simpler words like 'two' might suffice.	Use 'dual' for formal contexts, like academic writing or technical discussions. It's less common in casual conversation.	Use 'twice' to refer to something happening two times. It's commonly used in casual conversations and formal contexts, but avoid it in highly technical writing.

Perguntas frequentes: Double vs Dual vs Twice

Qual é a diferença entre Double, Dual e Twice?

Double: Twice as much or two of something. Dual: Having two parts or aspects. Twice: Two times.

Qual é mais avançada: Double, Dual e Twice?

Dual é o nível mais alto, em C1, na escala CEFR.

Double, Dual e Twice estão no mesmo nível CEFR?

Double: A2, Dual: C1, Twice: A1 na escala CEFR.

Que classe gramatical são Double, Dual e Twice?

Double: adjective, Dual: adjective, Twice: adverb.

Pode mostrar um exemplo de cada?

Double: He ordered a double espresso to stay awake during the meeting. Dual: his dual role as composer and conductor Twice: She has been to Paris twice.

Posso usar Double, Dual e Twice de forma intercambiável?

Nem sempre. Double, Dual e Twice são relacionadas e às vezes se sobrepõem, mas diferem em registro, frequência e uso, então trocar uma pela outra pode mudar o sentido ou o tom. Veja as diferenças acima antes de substituir.