Buy vs Obtain

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

Buy

Top 1,000 (very common)A1verb

Obtain

Top 2,000 (common)B2verb
Most common: Buy
 BuyObtain
Pronunciation🇬🇧 /["/baɪ/","/baɪz/","/bɔːt/","/ˈbaɪɪŋ/"]/🇺🇸 /["/baɪ/","/baɪz/","/bɔːt/","/ˈbaɪɪŋ/"]/🇬🇧 //əbˈteɪn//🇺🇸 //əbˈteɪn//
MeaningTo get something by paying money for it.To get or receive something.
ExampleI want to buy a new bicycle for the summer.You need to obtain permission from the manager first.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1B2
Part of speechverbverb
Collocationscheaply, online, locally, can afford to, can’t afford to, at, for, from, buy and sell, money can buy, money can’t buy, cheaply, online, locally, can afford to, can’t afford to, at, for, from, buy and sell, money can buy, money can’t buyobtain a degree, obtain funding, obtain information, obtain results, obtain consent
Antonymssell, give awaylose, forfeit, surrender
Common mistakesUsed with wrong prepositions, e.g., 'buy for a car' instead of 'buy a car'., Confusion between 'buy' and 'sale'., Omitting the object, e.g., saying 'I want to buy.' instead of 'I want to buy a book.'Confusing 'obtain' with 'get', which is less formal., Using 'obtain' incorrectly with intransitive forms., Incorrectly conjugating the verb in different tenses.
Usage notesCommonly used in everyday situations. Suitable for both spoken and written language. Avoid in very formal contexts where alternatives like 'purchase' may be preferred.Used in formal and neutral contexts. Common in academic and professional language. Not typically used in casual conversation.

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Buy

Frequently asked questions: Buy vs Obtain

What's the difference between Buy and Obtain?

Buy: To get something by paying money for it. Obtain: To get or receive something.

Which is more common: Buy and Obtain?

Buy is the most common in everyday English.

Which is more advanced: Buy and Obtain?

Obtain is the highest level, at B2, on the CEFR scale.

Are Buy and Obtain the same CEFR level?

Buy: A1, Obtain: B2 on the CEFR scale.

What part of speech are Buy and Obtain?

Buy: verb, Obtain: verb.

Can you show an example of each?

Buy: I want to buy a new bicycle for the summer. Obtain: You need to obtain permission from the manager first.

Can I use Buy and Obtain interchangeably?

Not always. Buy and Obtain 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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