Define vs Determine

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

Define

Top 1,000 (very common)B1verb

Determine

Top 1,000 (very common)B1verb
 DefineDetermine
Pronunciation🇬🇧 /["/dɪˈfaɪn/","/dɪˈfaɪnz/","/dɪˈfaɪnd/","/dɪˈfaɪnɪŋ/"]/🇺🇸 /["/dɪˈfaɪn/","/dɪˈfaɪnz/","/dɪˈfaɪnd/","/dɪˈfaɪnɪŋ/"]/🇬🇧 /["/dɪˈtɜːmɪn/","/dɪˈtɜːmɪnz/","/dɪˈtɜːmɪnd/","/dɪˈtɜːmɪnɪŋ/"]/🇺🇸 /["/dɪˈtɜːrmɪn/","/dɪˈtɜːrmɪnz/","/dɪˈtɜːrmɪnd/","/dɪˈtɜːrmɪnɪŋ/"]/
MeaningTo explain the meaning of a word or idea.To find out or decide something.
ExampleCan you define the term 'photosynthesis' for us?It is essential to determine the main cause of the problem.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelB1B1
Part of speechverbverb
Collocationsaccurately, carefully, correctly, be difficult to, be impossible to, be easy to, as, by, in terms of, accurately, carefully, correctly, be difficult to, be impossible to, be easy to, as, by, in terms ofexactly, precisely, reliably, try to, be used to, help to, biologically, culturally, genetically
Antonymsconfuse, misinterpretconfuse, neglect, ignore
Common mistakesConfused with 'defy' which means to resist or challenge., Using 'define' without an object, e.g., saying 'define' alone., Incorrectly spelled as 'defin' or 'defene'.Using 'determine' in the wrong tense., Confused with 'decide' or 'discover'., Incorrectly using as a standalone without an object.
Usage notesUse 'define' when you want to explain something clearly. It's suitable for academic and casual contexts, but avoid using it in very informal settings.Use 'determine' when making a decision based on information or evidence. It's appropriate in both written and spoken context but can sound formal in casual conversation.

See it in real clips

Define
Determine

Frequently asked questions: Define vs Determine

What's the difference between Define and Determine?

Define: To explain the meaning of a word or idea. Determine: To find out or decide something.

Are Define and Determine the same CEFR level?

Define: B1, Determine: B1 on the CEFR scale.

What part of speech are Define and Determine?

Define: verb, Determine: verb.

Can you show an example of each?

Define: Can you define the term 'photosynthesis' for us? Determine: It is essential to determine the main cause of the problem.

Can I use Define and Determine interchangeably?

Not always. Define and Determine 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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