Reckon vs Suppose

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

Reckon

Top 2,000 (common)B2verb

Suppose

Top 1,000 (very common)A2verb
Most common: Suppose
 ReckonSuppose
Pronunciation🇬🇧 /["/ˈrekən/","/ˈrekənz/","/ˈrekənd/","/ˈrekənɪŋ/"]/🇺🇸 /["/ˈrekən/","/ˈrekənz/","/ˈrekənd/","/ˈrekənɪŋ/"]/🇬🇧 /["/səˈpəʊz/","/səˈpəʊzɪz/","/səˈpəʊzd/","/səˈpəʊzɪŋ/"]/🇺🇸 /["/səˈpəʊz/","/səˈpəʊzɪz/","/səˈpəʊzd/","/səˈpəʊzɪŋ/"]/
MeaningTo think or believe something.to think something is true, especially for planning.
ExampleI reckon it will rain tomorrow based on the weather forecast.Suppose we leave early, we might avoid traffic.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelB2A2
Part of speechverbverb
Collocationsreckon that, I reckon, reckon with, reckon it will, reckon onmistakenly, wrongly, commonly, be plausible to, be reasonable to, be absurd to, reason to suppose something
Antonymsdoubt, question, disbelievedisbelieve, doubt, reject
Common mistakesConfused with 'recommend' — 'reckon' is about opinion, not suggesting something., Used too formally — it's better for conversations than in writing., Omitted the subject — must include who is doing the reckoning.Confused with 'suppose' vs 'supposed' — don't use them interchangeably., Using 'suppose' in a command form improperly., Mistakenly using 'suppose' with a noun instead of a clause.
Usage notesCommonly used in informal contexts, particularly in spoken English. It may sound too casual for formal writing. Avoid using in professional or academic settings.Typically used in situations where you're making assumptions or predictions. It's less appropriate in formal writing. In casual talks, it can indicate uncertainty.

Frequently asked questions: Reckon vs Suppose

What's the difference between Reckon and Suppose?

Reckon: To think or believe something. Suppose: to think something is true, especially for planning.

Which is more common: Reckon and Suppose?

Suppose is the most common in everyday English.

Are Reckon and Suppose the same CEFR level?

Reckon: B2, Suppose: A2 on the CEFR scale.

Can I use Reckon and Suppose interchangeably?

Not always. Reckon and Suppose 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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