Concept vs Idea vs Notion vs Theory vs Thought

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

Concept

Top 1000 (muito comum) B2 noun

Idea

Top 1000 (muito comum) A1 noun

Notion

Top 2000 (comum) B2 noun

Theory

Top 1000 (muito comum) B1 noun

Thought

Top 1000 (muito comum) A2 noun

	Concept	Idea	Notion	Theory	Thought
Pronúncia	🇬🇧 /["/ˈkɒnsept/"]/ 🇺🇸 /["/ˈkɑːnsept/"]/	🇬🇧 /["/aɪˈdɪə/"]/ 🇺🇸 /["/aɪˈdiːə/"]/	🇬🇧 /["/ˈnəʊʃn/"]/ 🇺🇸 /["/ˈnəʊʃn/"]/	🇬🇧 //ˈθɪəri// 🇺🇸 //ˈθɪəri//	🇬🇧 /["/θɔːt/"]/ 🇺🇸 /["/θɔːt/"]/
Significado	Uma ideia ou um plano na sua cabeça. An idea or a plan in your mind.	Um pensamento ou sugestão sobre algo. A thought or suggestion about something.	An idea or belief about something.	Uma ideia ou explicação que tenta explicar alguma coisa. An idea or explanation that tries to explain something.	O que você pensa ou acredita. What you think or believe.
Exemplo	The concept of freedom varies greatly from one culture to another.	She had a brilliant idea for a new invention.	The notion of freedom varies greatly between cultures.	Einstein's theory of relativity revolutionized our understanding of space and time.	I had a sudden thought that I should call my friend.
Registro	Neutro	Neutro	Neutro	Neutro	Neutro
Quão comum	Top 1000 (muito comum)	Top 1000 (muito comum)	Top 2000 (comum)	Top 1000 (muito comum)	Top 1000 (muito comum)
Nível CEFR	B2	A1	B2	B1	A2
Classe gramatical	noun	noun	noun	noun	noun
Colocações	basic, simple, broad, have, grasp, understand, concept of	bright, brilliant, clever, have, come up with, dream up, come into somebody’s brain, come into somebody’s head, come into somebody’s mind, idea about, idea for, idea of, be open to ideas, the germ of an idea, have other ideas, clear, concrete, precise, get, espouse, have, amuse somebody, appeal to somebody, please somebody, idea about, idea behind, idea of, clear, concrete, precise, get, espouse, have, amuse somebody, appeal to somebody, please somebody, idea about, idea behind, idea of	absurd, foolish, misguided, have, challenge, debunk, notion of	scientific theory, theory of relativity, theory in practice, theory and practice	comforting, good, happy, have, think, have, come into somebody’s head, come into somebody’s mind, come to somebody, thought about, thought of, thought on, just a thought, keep your thoughts to yourself, the mere thought of something, modern, 19th-century, etc., crime, police, a school of thought, a strand of thought, careful, proper, serious, give somebody/​something, spare (somebody), direct, go into something, pattern, process, experiment, without thought, after a moment’s thought, freedom of thought, a line of thought, careful, proper, serious, give somebody/​something, spare (somebody), direct, go into something, pattern, process, experiment, without thought, after a moment’s thought, freedom of thought, a line of thought, kind, nice, modern, 19th-century, etc., crime, police, a school of thought, a strand of thought
Antônimos	reality, fact	reality, fact	reality, fact	fact, truth	ignorance, unconcern, carelessness
Erros comuns	Confused with 'conceptual' as an adjective., Using 'concept' in too casual a context., Mispronouncing it as con-sept instead of con-sept.	Confusing 'idea' with 'idear' which is incorrect., Using 'idea' as a verb; it is only a noun., Mispronouncing 'idea' by not emphasizing the second syllable.	Confusing 'notion' with 'motion' (they sound similar)., Using 'notion' when 'fact' is intended., Overusing 'notion' in casual conversations.	Confused with 'hypothesis'; a theory is more established., Incorrectly used to mean 'theory' as just a guess or opinion.	'Thought' is often incorrectly used in the present tense as 'thinked'., Learners may confuse 'thought' and 'thoughtful'., Using 'thought' without a subject in sentences can lead to confusion.
Notas de uso	Use 'conceito' ao discutir ideias em contextos acadêmicos, técnicos ou criativos. Evite em conversas casuais onde palavras mais simples como 'ideia' podem funcionar melhor. Use 'concept' when discussing ideas in academic, technical, or creative contexts. Avoid in casual conversations where simpler words like 'idea' might work better.	Use 'ideia' tanto em contextos falados quanto escritos. É adequado para a maioria das situações, mas frases mais formais como 'conceito' podem ser melhores em ambientes acadêmicos. Use 'idea' in both spoken and written contexts. It is suitable for most situations, but more formal phrases like 'concept' may be better in academic settings.	Use 'notion' in contexts where discussing concepts or beliefs. This word is appropriate in both spoken and written language but leans more towards academic or philosophical discussions.	Usado em contextos acadêmicos e cotidianos. Evite em conversas casuais, a menos que esteja discutindo ideias ou conceitos. Used in academic and everyday contexts. Avoid in casual conversations unless discussing ideas or concepts.	Use 'thought' em inglês falado e escrito para expressar ideias ou opiniões. É apropriado na maioria das situações, mas pode parecer muito formal em conversas casuais. Use 'thought' in both spoken and written English to express ideas or opinions. It's appropriate in most situations but can feel too formal in casual conversations.

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You took my sonar concept and applied it to every phone in the city.

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Now, Parachute Infantry is a brand-new concept...

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I understand therapy as a concept.

You took my sonar concept and applied it to every phone in the city.

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Now, Parachute Infantry is a brand-new concept...

Concept

So he gives himself the idea.

"Okay, here's an idea.

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The idea is for non-infantry types who...

So he gives himself the idea.

"Okay, here's an idea.

Idea

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But we haven't disproved the theory,

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So, Marshall, this Olive Theory based on you and Lily.

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But we haven't disproved the theory,

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So, Marshall, this Olive Theory based on you and Lily.

Theory

Perguntas frequentes: Concept vs Idea vs Notion vs Theory vs Thought

Qual é a diferença entre Concept, Idea, Notion, Theory e Thought?

Concept: An idea or a plan in your mind. Idea: A thought or suggestion about something. Notion: An idea or belief about something. Theory: An idea or explanation that tries to explain something. Thought: What you think or believe.

Concept, Idea, Notion, Theory e Thought estão no mesmo nível CEFR?

Concept: B2, Idea: A1, Notion: B2, Theory: B1, Thought: A2 na escala CEFR.

Que classe gramatical são Concept, Idea, Notion, Theory e Thought?

Concept: noun, Idea: noun, Notion: noun, Theory: noun, Thought: noun.

Pode mostrar um exemplo de cada?

Concept: The concept of freedom varies greatly from one culture to another. Idea: She had a brilliant idea for a new invention. Notion: The notion of freedom varies greatly between cultures. Theory: Einstein's theory of relativity revolutionized our understanding of space and time. Thought: I had a sudden thought that I should call my friend.

Posso usar Concept, Idea, Notion, Theory e Thought de forma intercambiável?

Nem sempre. Concept, Idea, Notion, Theory e Thought 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.