Definition vs Explanation

When to use each in English, with meaning, register, and examples.

Definition

Top 1,000 (very common)B1noun

Explanation

Top 2,000 (common)A2noun
Most common: Definition
 DefinitionExplanation
Pronunciation🇬🇧 /["/ˌdefɪˈnɪʃn/"]/🇺🇸 /["/ˌdefɪˈnɪʃn/"]/🇬🇧 /["/ˌekspləˈneɪʃn/"]/🇺🇸 /["/ˌekspləˈneɪʃn/"]/
MeaningA clear explanation of the meaning of a word.A statement or description that makes something clear.
ExampleThe definition of love can vary from person to person.The teacher gave a clear explanation of the difficult concept.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB1A2
Part of speechnounnoun
Collocationscareful, clear, concise, give (somebody), offer (somebody), propose, encompass something, include something, according to a/​the definition, by definition, under a/​the definition, careful, clear, concise, give (somebody), offer (somebody), propose, encompass something, include something, according to a/​the definition, by definition, under a/​the definitionconvincing, credible, good, have, give (somebody), offer (somebody), lie, emerge, occur to somebody, in explanation, without explanation, explanation about, an attempt at explanation, by way of explanation, convincing, credible, good, have, give (somebody), offer (somebody), lie, emerge, occur to somebody, in explanation, without explanation, explanation about, an attempt at explanation, by way of explanation
Antonymsambiguity, confusionconfusion, mystification
Common mistakesConfused with 'definitive' which refers to something final or conclusive., Using it in a grammatical context where 'meaning' is more suitable., Mistaking it for 'definer', which is a person who defines.'Explanation' is often confused with 'explanation' versus 'explanatory'., Sometimes learners forget to use 'an' before 'explanation'., Using 'explain' instead of 'explanation' in noun forms.
Usage notesUse 'definition' when discussing the meaning of words in educational contexts. It is appropriate for formal writing and informal conversations but avoid it in overly casual settings.Use 'explanation' in neutral contexts. It’s suitable for formal writing, but can also be used in conversation. Avoid it in very casual or slang contexts.

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Explanation

Frequently asked questions: Definition vs Explanation

What's the difference between Definition and Explanation?

Definition: A clear explanation of the meaning of a word. Explanation: A statement or description that makes something clear.

Which is more common: Definition and Explanation?

Definition is the most common in everyday English.

Which is more advanced: Definition and Explanation?

Definition is the highest level, at B1, on the CEFR scale.

Are Definition and Explanation the same CEFR level?

Definition: B1, Explanation: A2 on the CEFR scale.

What part of speech are Definition and Explanation?

Definition: noun, Explanation: noun.

Can you show an example of each?

Definition: The definition of love can vary from person to person. Explanation: The teacher gave a clear explanation of the difficult concept.

Can I use Definition and Explanation interchangeably?

Not always. Definition and Explanation are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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