Cool MateApproximate vs Close vs Estimate vs Rough
When to use each in English, with meaning, register, and examples.
Approximate
Close
Estimate
Rough
| Approximate | Close | Estimate | Rough | |
|---|---|---|---|---|
| Pronunciation | 🇬🇧 /["/əˈprɒksɪmət/"]/🇺🇸 /["/əˈprɑːksɪmət/"]/ | 🇬🇧 /["/kləʊz/","/ˈkləʊzɪz/","/kləʊzd/","/ˈkləʊzɪŋ/"]/🇺🇸 /["/kləʊz/","/ˈkləʊzɪz/","/kləʊzd/","/ˈkləʊzɪŋ/"]/ | 🇬🇧 //ˈɛstɪmeɪt//🇺🇸 //ˈɛstəˌmeɪt// | 🇬🇧 /["/rʌf/"]/🇺🇸 /["/rʌf/"]/ |
| Meaning | To guess or estimate something closely. | To shut something, like a door or a window. | To make an educated guess about a number or amount. | Not smooth; having a lot of bumps or uneven areas. |
| Example | an **approximate number/total/cost** | Please close the door before you leave. | Can you estimate the cost of the project? | The surface of the table is quite rough, making it difficult to write on. |
| Register | Neutral | Neutral | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 1,000 (very common) | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | B1 | A1 | B2 | B1 |
| Part of speech | adjective | verb | verb | adjective |
| Collocations | approximate value, approximate number, approximate location | firmly, tightly, gently, firmly, tightly, gently, permanently, temporarily, officially, to, permanently, temporarily, officially, to | estimate the cost, estimate the time, estimate the value | rough surface, rough estimate, rough terrain, rough times, rough texture |
| Antonyms | exact, precise | open, start | calculate, measure | smooth, soft, gentle |
| Common mistakes | Confusing with 'approximation' - 'approximate' is a verb., Using it as a noun - 'approximate' should be used as a verb or adjective., Not pairing with an appropriate object - remember to specify what you are approximating. | Confusing 'close' with 'shut' – know when to use which., Using 'close' when referring to people (e.g., 'close the friend') instead of 'end' or 'finish'. | Confused with 'assess' which means to evaluate rather than guess., Using with the wrong preposition like 'to estimate in' instead of 'to estimate at'. | Confused with 'ruff', which is a dog sound., Using 'rough' instead of 'tough' when talking about difficulty., 'Roughness' is sometimes incorrectly used for subjects, instead of describing physical texture. |
| Usage notes | Use 'approximate' when you want to suggest an estimate rather than an exact number. It's suitable for academic and everyday contexts. Avoid using it in very casual conversations. | Use 'close' when talking about shutting physical objects like doors or books. It can also mean to finish something, such as a meeting. Avoid using it with people in most contexts, except in very informal conversations. | Use 'estimate' in formal and informal contexts when discussing predictions or calculations. Avoid in casual conversations unless talking about numbers. | Use 'rough' to describe surfaces, textures, or conditions that are not smooth or gentle. It can also refer to someone being harsh or unfriendly in behavior. It is generally neutral but may sound informal in some contexts. Avoid using 'rough' in very formal writing. |
Frequently asked questions: Approximate vs Close vs Estimate vs Rough
What's the difference between Approximate, Close, Estimate, and Rough?
Approximate: To guess or estimate something closely. Close: To shut something, like a door or a window. Estimate: To make an educated guess about a number or amount. Rough: Not smooth; having a lot of bumps or uneven areas.
Which is more advanced: Approximate, Close, Estimate, and Rough?
Estimate is the highest level, at B2, on the CEFR scale.
Are Approximate, Close, Estimate, and Rough the same CEFR level?
Approximate: B1, Close: A1, Estimate: B2, Rough: B1 on the CEFR scale.
What part of speech are Approximate, Close, Estimate, and Rough?
Approximate: adjective, Close: verb, Estimate: verb, Rough: adjective.
Can you show an example of each?
Approximate: an **approximate number/total/cost** Close: Please close the door before you leave. Estimate: Can you estimate the cost of the project? Rough: The surface of the table is quite rough, making it difficult to write on.
Can I use Approximate, Close, Estimate, and Rough interchangeably?
Not always. Approximate, Close, Estimate, and Rough 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.