API vs Service
When to use each in English, with meaning, register, and examples.
API
Top 2,000 (common)
Service
Top 1,000 (very common)A2noun
Most common: Service
| API | Service | |
|---|---|---|
| Pronunciation | 🇬🇧 //eɪ.piː.aɪ//🇺🇸 //ˈeɪ.piː.aɪ// | 🇬🇧 /["/ˈsɜːvɪs/"]/🇺🇸 /["/ˈsɜːrvɪs/"]/ |
| Meaning | A way for different software programs to talk to each other. | Help performed for someone, or a job in a business. |
| Example | The app uses an API to connect to the database. | The restaurant offers excellent service to its customers. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 1,000 (very common) |
| CEFR level | - | A2 |
| Part of speech | noun | |
| Collocations | API documentation, API endpoint, REST API, API key, public API | efficient, excellent, good, offer (somebody), provide (somebody with), operate, improve, deteriorate, provider, business, company, service for, service to, goods and services, products and services, efficient, excellent, good, offer (somebody), provide (somebody with), operate, improve, deteriorate, provider, business, company, service for, service to, goods and services, products and services, efficient, excellent, good, offer (somebody), provide (somebody with), operate, improve, deteriorate, provider, business, company, service for, service to, goods and services, products and services, efficient, excellent, first-class, deliver something (to somebody), give (somebody), offer (somebody), job, worker, meritorious, outstanding, faithful, do, see, begin, member, personnel, record, service to, conditions of service, in the service of your country, in the service of God, armed, go into, join, meritorious, outstanding, faithful, do, see, begin, member, personnel, record, service to, conditions of service, in the service of your country, in the service of God, great, invaluable, valuable, be of, do somebody, perform, charge, fee, at your service, services of, service to, church, religious, funeral, attend, go to, hold, service for, efficient, good, reliable, lay on, offer (somebody), provide (somebody with), in service, out of service, service between, great, invaluable, valuable, be of, do somebody, perform, charge, fee, at your service, services of, service to |
| Antonyms | - | neglect, abandon, disservice |
| Common mistakes | Confused with 'IPA', which stands for International Phonetic Alphabet., Misunderstanding that APIs are a type of software rather than a way to connect software., Using 'API' in a plural form incorrectly, e.g., 'APIs' is appropriate when discussing multiple. | Confused with 'serve' which is a verb., Using 'services' improperly as a singular noun., Confusing 'service' with 'servant' in a service context. |
| Usage notes | Commonly used in tech and programming contexts. Avoid in casual conversations unless discussing tech. Usually not formal. | Used in both formal and informal contexts. In business, it often refers to customer support. Avoid using in overly casual situations without context. |
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Frequently asked questions: API vs Service
What's the difference between API and Service?
API: A way for different software programs to talk to each other. Service: Help performed for someone, or a job in a business.
Which is more common: API and Service?
Service is the most common in everyday English.
Can you show an example of each?
API: The app uses an API to connect to the database. Service: The restaurant offers excellent service to its customers.
Can I use API and Service interchangeably?
Not always. API and Service 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.