Guess vs Guess what

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

Guess

Top 1,000 (very common)A1verb

Guess what

InformalTop 2,000 (common)
Most formal: GuessMost common: Guess
 GuessGuess what
Pronunciation🇬🇧 /["/ɡes/","/ˈɡesɪz/","/ɡest/","/ˈɡesɪŋ/"]/🇺🇸 /["/ɡes/","/ˈɡesɪz/","/ɡest/","/ˈɡesɪŋ/"]/🇬🇧 //ɡɛs wɒt//🇺🇸 //ɡɛs wɑt//
MeaningTo try to answer something without being sure.A phrase to ask someone to figure something out.
ExampleCan you guess the answer to the riddle?Guess what! I got the job I applied for!
RegisterNeutralInformal
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1-
Part of speechverb
Collocationscorrectly, right, incorrectly, can, can only, try to, at, from, could have guessed, might have guessed, should have guessed, correctly, right, incorrectly, can, can only, try to, at, from, could have guessed, might have guessed, should have guessed, correctly, right, incorrectly, can, can only, try to, at, from, could have guessed, might have guessed, should have guessed, correctly, right, incorrectly, can, can only, try to, at, from, could have guessed, might have guessed, should have guessedguess what happened, guess what I found, guess what she said
Antonymsknow, certaintyignore, know for certain, disregard
Common mistakesUsing 'guess' as a noun incorrectly, e.g., 'Give me a guess' instead of 'Take a guess.', Confusing 'guess' with 'know' — they have different levels of certainty., Using 'guess' with a direct object where an indirect object is needed.Using it in formal situations., Forgetting to follow up with the surprise., Omitting 'what' and saying just 'guess'.
Usage notesUse 'guess' when you are making a suggestion or estimation without having all the facts. It's appropriate in informal and formal contexts. Avoid using 'guess' in very serious situations where certainty is required.Used to introduce surprising or interesting news. Avoid in formal writing.

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Guess
Guess what

Frequently asked questions: Guess vs Guess what

What's the difference between Guess and Guess what?

Guess: To try to answer something without being sure. Guess what: A phrase to ask someone to figure something out.

Which is more formal: Guess and Guess what?

Guess is the most formal of these.

Which is more common: Guess and Guess what?

Guess is the most common in everyday English.

Can you show an example of each?

Guess: Can you guess the answer to the riddle? Guess what: Guess what! I got the job I applied for!

Can I use Guess and Guess what interchangeably?

Not always. Guess and Guess what 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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