Cool MateGuess what vs Speculate
When to use each in English, with meaning, register, and examples.
Guess what
InformalTop 2,000 (common)
Speculate
Top 2,000 (common)B2verb
Most formal: Speculate
| Guess what | Speculate | |
|---|---|---|
| Pronunciation | 🇬🇧 //ɡɛs wɒt//🇺🇸 //ɡɛs wɑt// | 🇬🇧 /["/ˈspekjuleɪt/","/ˈspekjuleɪts/","/ˈspekjuleɪtɪd/","/ˈspekjuleɪtɪŋ/"]/🇺🇸 /["/ˈspekjuleɪt/","/ˈspekjuleɪts/","/ˈspekjuleɪtɪd/","/ˈspekjuleɪtɪŋ/"]/ |
| Meaning | A phrase to ask someone to figure something out. | To guess or think about something without having all the facts. |
| Example | Guess what! I got the job I applied for! | Investors often speculate on the stock market to try to make quick profits. |
| Register | Informal | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | - | B2 |
| Part of speech | verb | |
| Collocations | guess what happened, guess what I found, guess what she said | openly, publicly, widely, can only, be free to, feel free to, about, as to, on |
| Antonyms | ignore, know for certain, disregard | know, ascertain, determine |
| Common mistakes | Using it in formal situations., Forgetting to follow up with the surprise., Omitting 'what' and saying just 'guess'. | 'Speculate' is often confused with 'speculation', which is a noun., 'Speculate' should not be used with definite information; it implies uncertainty., Learners sometimes use 'speculate' without a preposition, which makes it sound incomplete. |
| Usage notes | Used to introduce surprising or interesting news. Avoid in formal writing. | Use 'speculate' when discussing possibilities or theories, especially in academic or serious contexts. It's less common in casual conversation. |
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Frequently asked questions: Guess what vs Speculate
What's the difference between Guess what and Speculate?
Guess what: A phrase to ask someone to figure something out. Speculate: To guess or think about something without having all the facts.
Which is more formal: Guess what and Speculate?
Speculate is the most formal of these.
Can you show an example of each?
Guess what: Guess what! I got the job I applied for! Speculate: Investors often speculate on the stock market to try to make quick profits.
Can I use Guess what and Speculate interchangeably?
Not always. Guess what and Speculate 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.