Assume vs I just think he's guilty

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

Assume

Top 1,000 (very common)B2verb

I just think he's guilty

Top 2,000 (common)
Most common: Assume
 AssumeI just think he's guilty
Pronunciation🇬🇧 /["/əˈsjuːm/","/əˈsjuːmz/","/əˈsjuːmd/","/əˈsjuːmɪŋ/"]/🇺🇸 /["/əˈsuːm/","/əˈsuːmz/","/əˈsuːmd/","/əˈsuːmɪŋ/"]/🇬🇧 //aɪ dʒʌst θɪŋk hiːz ˈɡɪlti//🇺🇸 //aɪ dʒʌst θɪŋk hiz ˈɡɪlti//
MeaningTo take something as true without proof.I believe he did something wrong.
ExampleI assume you will be attending the meeting tomorrow.After hearing all the evidence, I just think he's guilty.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB2-
Part of speechverb
Collocationsautomatically, naturally, reasonably, can, might, tend to, let us assumethink he's guilty, just think, I think, think about something
Antonymsdoubt, disregard, questioninnocent, blameless
Common mistakesOften confused with 'presume', which implies a stronger basis for belief., Mistakenly used in place of 'guess', which is more uncertain.Using 'thinks' instead of 'think' with 'I'., Confusing 'guilty' with 'innocent'., Forgetting to include 'just' to soften the opinion.
Usage notesCommonly used in everyday conversation and writing. Avoid using 'assume' in very formal contexts where more precise language is needed.Use in discussions about opinions or beliefs. Avoid in formal writing; better suited for conversational contexts.

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Assume
I just think he's guilty

Frequently asked questions: Assume vs I just think he's guilty

What's the difference between Assume and I just think he's guilty?

Assume: To take something as true without proof. I just think he's guilty: I believe he did something wrong.

Which is more common: Assume and I just think he's guilty?

Assume is the most common in everyday English.

Can you show an example of each?

Assume: I assume you will be attending the meeting tomorrow. I just think he's guilty: After hearing all the evidence, I just think he's guilty.

Can I use Assume and I just think he's guilty interchangeably?

Not always. Assume and I just think he's guilty 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.