Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
buy into
Grammar usage guide and real-world examplesUSAGE SUMMARY
"buy into" is a correct and usable expression in written English.
It is often used to mean to become involved in or accept something, or to express agreement or enthusiasm for something. For example, you might say "I'm buying into the company's new ideas."
✓ Grammatically correct
News & Media
Formal & Business
Science
Alternative expressions(7)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
Don't buy into that".
News & Media
"Kids buy into that.
News & Media
People buy into my agenda.
News & Media
I didn't buy into it.
News & Media
"I didn't buy into that.
News & Media
People buy into that.
News & Media
People buy into St.
News & Media
They buy into that.
News & Media
"These kids buy into the process.
News & Media
You have to buy into it.
News & Media
Bishop won't buy into the booze.
News & Media
Expert writing Tips
Best practice
When using "buy into", ensure the context clearly indicates whether you mean believing in something (an idea, concept) or investing in something (a business, project).
Common error
Avoid using "buy into" when a more direct verb like "believe", "invest", or "accept" would be clearer. Overusing the phrasal verb can make your writing sound less precise.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "buy into" is a phrasal verb. It acts as a verb phrase, where "buy" is the verb and "into" is the particle. As shown in Ludwig AI, the phrase expresses accepting the validity of something or investing in something.
Frequent in
News & Media
67%
Formal & Business
15%
Science
18%
Less common in
Social Media
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrasal verb "buy into" is a very common expression used to convey acceptance, belief, or investment in an idea, concept, or venture. Ludwig AI confirms its grammatical correctness and widespread use. It functions as a neutral term, making it appropriate for use in a variety of registers. Usage patterns show that it is most frequently found in news and media, as well as formal business contexts. When using "buy into", ensure you are clear whether you mean belief or investment, and avoid overuse to maintain clarity. Consider alternatives such as "believe in", "invest in", or "accept as valid" for more precise communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
believe in
Focuses on having faith or trust in something.
subscribe to
Indicates agreement with a particular view or belief system.
accept as valid
Emphasizes the acceptance of something as true or legitimate.
be convinced of
Emphasizes a state of certainty or strong belief.
invest in
Implies a commitment of resources, whether financial or emotional.
concur with
Highlights agreement or alignment with an idea or opinion.
embrace wholeheartedly
Highlights a complete and enthusiastic adoption of something.
get behind
Suggests supporting or promoting something, often an initiative or cause.
support actively
Indicates not just belief but also active endorsement and promotion.
fall for
Suggests being deceived or strongly attracted to something.
FAQs
How can I use "buy into" in a sentence?
What does it mean to "buy into" something?
To "buy into" something means to believe in it, accept it, or invest in it, depending on the context. It implies an agreement with or support for an idea, product, or venture.
Which is a better alternative for "buy into": "believe" or "invest"?
The best alternative depends on the specific meaning you want to convey. If you want to emphasize belief or agreement, use "believe in" or "subscribe to". If you mean putting resources into something, "invest in" is more appropriate.
Is it correct to say "I'm not buying into it"?
Yes, "I'm not buying into it" is a correct and common way to express disagreement or disbelief in something. It's often used informally to reject an idea or proposal.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested