Determine vs Find out

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

Determine

Top 1,000 (very common)B1verb

Find out

Top 1,000 (very common)
 DetermineFind out
Pronunciation🇬🇧 /["/dɪˈtɜːmɪn/","/dɪˈtɜːmɪnz/","/dɪˈtɜːmɪnd/","/dɪˈtɜːmɪnɪŋ/"]/🇺🇸 /["/dɪˈtɜːrmɪn/","/dɪˈtɜːrmɪnz/","/dɪˈtɜːrmɪnd/","/dɪˈtɜːrmɪnɪŋ/"]/🇬🇧 //faɪnd aʊt//🇺🇸 //faɪnd aʊt//
MeaningTo find out or decide something.To learn something that was not known before.
ExampleIt is essential to determine the main cause of the problem.I need to find out where he went last night.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelB1-
Part of speechverb
Collocationsexactly, precisely, reliably, try to, be used to, help to, biologically, culturally, geneticallyfind out information, find out the truth, find out more, find out details, find out what
Antonymsconfuse, neglect, ignore-
Common mistakesUsing 'determine' in the wrong tense., Confused with 'decide' or 'discover'., Incorrectly using as a standalone without an object.Confused with 'figure out' - they have different nuances., Incorrect use of tenses - remember to match past and present., Using 'find out' without an object - it should always be followed by something.
Usage notesUse '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.Use 'find out' when you discover new information. It is suitable in both formal and informal contexts.

See it in real clips

Find out

Frequently asked questions: Determine vs Find out

What's the difference between Determine and Find out?

Determine: To find out or decide something. Find out: To learn something that was not known before.

Can you show an example of each?

Determine: It is essential to determine the main cause of the problem. Find out: I need to find out where he went last night.

Can I use Determine and Find out interchangeably?

Not always. Determine and Find out 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.

Related comparisons