Cool MateFunction vs Operation
When to use each in English, with meaning, register, and examples.
Function
Top 1,000 (very common)B1noun
Operation
Top 2,000 (common)B1noun
Most common: Function
| Function | Operation | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈfʌŋkʃn/"]/🇺🇸 /["/ˈfʌŋkʃn/"]/ | 🇬🇧 /["/ˌɒpəˈreɪʃn/"]/🇺🇸 /["/ˌɑːpəˈreɪʃn/"]/ |
| Meaning | What something does or is used for. | A task or activity that is done to achieve a goal. |
| Example | The main function of the heart is to pump blood throughout the body. | The operation was scheduled for early morning. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | B1 | B1 |
| Part of speech | noun | noun |
| Collocations | important, useful, valuable, have, carry out, fulfil/fulfill, charity, official, social, hold, attend, go to, room | major, minor, small, have, undergo, come through, during a/the operation, operation for, operation on, big, large-scale, major, begin, launch, mount, during a/the operation, a theatre/theater of operations, big, large-scale, major, begin, launch, mount, during a/the operation, a theatre/theater of operations, big, large-scale, major, begin, launch, mount, during a/the operation, a theatre/theater of operations, effective, efficient, smooth, come into, bring something into, put something into, during operation, in operation, in full operation, into full operation, big, large-scale, major, begin, launch, mount, during a/the operation, a theatre/theater of operations |
| Antonyms | dysfunction, malfunction | disruption, inaction |
| Common mistakes | 'Function' is confused with 'functional' — they are different., Using 'function' when 'purpose' is more appropriate., Incorrectly pluralizing 'function' when referring to it in general terms. | 'Operation' used incorrectly to mean 'operation table' or 'operation room'., Confused with 'operation' as a synonym for 'procedure' in informal settings., Omitting the noun that follows 'operation', e.g., saying 'operation is' instead of 'operation of machinery is'. |
| Usage notes | Use 'function' when discussing what something is supposed to do. It's appropriate in technical, academic, or everyday contexts, but avoid it in very casual conversations. | Used in various contexts such as business, military, and mathematics. It may seem too formal for casual conversation. |
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Frequently asked questions: Function vs Operation
What's the difference between Function and Operation?
Function: What something does or is used for. Operation: A task or activity that is done to achieve a goal.
Which is more common: Function and Operation?
Function is the most common in everyday English.
Are Function and Operation the same CEFR level?
Function: B1, Operation: B1 on the CEFR scale.
Can I use Function and Operation interchangeably?
Not always. Function and Operation 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.