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
believe in
Grammar usage guide and real-world examplesUSAGE SUMMARY
"believe in" is correct and usable in written English.
You can use it to express your confident faith or trust in a person, thing, or idea. For example: "I believe in the power of positive thinking."
✓ Grammatically correct
News & Media
Wiki
Formal & Business
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
I believe in integrity.
News & Media
"We believe in print".
News & Media
"I believe in magic".
News & Media
I believe in myself.
News & Media
I believe in Allah.
News & Media
I believe in God.
News & Media
They believe in brands.
News & Media
They believe in autocracy".
News & Media
Don't believe in spells?
News & Media
"Catholics believe in sacramentality.
News & Media
I believe in Superman".
News & Media
Expert writing Tips
Best practice
Use "believe in" to express a deep-seated conviction or faith in a person, idea, or system. For example, "I believe in the power of education."
Common error
Avoid using "believe in" when a more direct verb like "think" or "expect" would be more appropriate. For instance, instead of "I believe in it will rain tomorrow", say "I think it will rain tomorrow."
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "believe in" functions as a verb phrase expressing conviction, faith, or trust. As Ludwig AI indicates, it signifies more than just accepting something as true; it implies a deeper level of confidence.
Frequent in
News & Media
54%
Wiki
15%
Formal & Business
8%
Less common in
Science
8%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "believe in" is a common and grammatically correct verb phrase used to express faith, trust, or confidence in someone or something. Ludwig AI confirms its validity and broad applicability. As evidenced by numerous examples from sources like The New York Times and BBC, "believe in" is frequently used in news and media to convey conviction, but also has usage in Wiki and Formal & Business contexts. Alternatives include "have faith in" or "be confident in". When using "believe in", ensure it reflects a genuine sense of trust rather than a simple expectation, and be mindful of overusing it in place of more precise verbs like "think".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
have faith in
Indicates a strong confidence or trust in someone or something, often with a religious connotation, but not exclusively.
be confident in
Implies a feeling of assurance and certainty about someone's abilities or the likelihood of a positive outcome.
trust in
Highlights the reliance and dependability one places on a person or thing.
have confidence in
Emphasizes a firm belief in the reliability, truth, ability, or strength of someone or something.
swear by
Suggests a strong endorsement or recommendation based on personal experience and conviction.
rely on
Focuses on the dependence and reliance on something or someone for support or assistance.
count on
Implies a confident expectation that someone will fulfill a commitment or obligation.
place trust in
Highlights the act of deliberately assigning confidence to someone or something.
be a believer in
Emphasizes active acceptance and promotion of an idea, concept, or person.
uphold
Suggests defending or maintaining a principle or belief.
FAQs
What does it mean to "believe in" something?
To "believe in" something means to have confidence in its existence, truth, or reliability. It implies a sense of trust and conviction, often without concrete proof.
How can I use "believe in" in a sentence?
You can use "believe in" to express faith in a person (e.g., "I believe in you"), a concept (e.g., "I believe in justice"), or a higher power (e.g., "I believe in God").
What are some alternatives to "believe in"?
Depending on the context, you could use alternatives like "have faith in", "trust in", or "be confident in".
Is there a difference between "believe" and "believe in"?
"Believe" generally refers to accepting something as true, while "believe in" implies a stronger sense of trust, confidence, or faith. For example, you might "believe" a fact, but you "believe in" a friend.
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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