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
let somebody know
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "let somebody know" is correct and usable in written English.
It can be used when you want someone to inform another person about something or to communicate information. Example: "Please let me know if you will be attending the meeting tomorrow."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(20)
let everyone return
inform someone
let friends know
let someone know
letting everyone know
let you know
let everyone know
let no one know
get in touch with someone
announce to all
let everybody know
communicate to all
let each know
tell everyone
update someone
let it be known
spread the word
let all know
let anybody know
let children know
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
12 human-written examples
"He'd let somebody know what had happened to him if he was able.
News & Media
"We asked if they saw anything interesting, let somebody know," Mr. Moylan said, "and lo and behold, they found this small batch on Gottschalk".
News & Media
No way I was going to let somebody know I'd been gotten at; no way I was going to give somebody that satisfaction".
News & Media
"Don't you say hello to nobody when you ain't seen them for ten years?" "If folks let somebody know where they is and when they coming, then other folks can get ready for them.
News & Media
There's lots of different ways you can let somebody know you don't like what they're doing as opposed to what I did, so I could have gone about it many other ways for sure".
News & Media
"If I decide to play, I need to let somebody know by the first of February," Clemens, 42, said after playing in the Mercedes Championships pro-am in Kapalua, Hawaii.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
47 human-written examples
As my understanding of photography only really extends to "don't forget to wind it on", I thought I'd let somebody who knows a little bit more about this sort of thing have their say.
News & Media
That's a constant learning process — how to let go and let somebody else do it who knows how to do it better than you do it.
News & Media
"Do you think it's smart to let somebody come, someone you don't know, to invite him to your state, the state everybody is fighting against?
News & Media
(FG3)" " Having a Parent Teacher Meeting, let somebody come and advise them listen you know you have to help at the school as well as the parents have to help at home.
Science
You know, it's time to let somebody else be the captain".
News & Media
Expert writing Tips
Best practice
When using "let somebody know", ensure the context clearly indicates what information needs to be communicated. Be specific to avoid ambiguity.
Common error
Avoid using "let somebody know" without specifying what information is needed. For instance, instead of "Let me know", say "Let me know if you can attend the meeting" for clarity.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "let somebody know" functions as a phrasal verb construction, primarily used to request or instruct someone to communicate information. Ludwig AI confirms that this phrase is standard and widely accepted.
Frequent in
News & Media
30%
Wiki
27%
Science
15%
Less common in
Formal & Business
9%
Academia
9%
Reference
0%
Ludwig's WRAP-UP
In summary, "let somebody know" is a versatile phrase used to instruct or request someone to communicate information. Ludwig AI affirms its grammatical correctness and widespread acceptance across various contexts. It's crucial to specify what information needs to be conveyed to avoid vagueness. Alternatives like "inform someone" or "notify someone" can be used depending on the desired level of formality. The phrase is most commonly found in news and media, wiki, and science contexts, making it a practical addition to any writer's toolkit.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
make someone aware
Focuses on ensuring that the person is conscious of the information.
inform someone
This is a more formal synonym for "let somebody know".
keep someone informed
Implies a continuous flow of information.
notify someone
Similar to 'inform', but can also imply a more official communication.
update someone
Suggests providing the latest information on a particular matter.
tell someone
A more direct and informal way to convey the same meaning.
give someone notice
Implies a formal or official announcement.
advise someone
Suggests providing guidance or recommendations along with the information.
get in touch with someone
Suggests initiating communication to relay the information.
apprise someone
A more formal and less common way of saying "let someone know".
FAQs
How can I use "let somebody know" in a sentence?
You can use "let somebody know" to indicate that you want someone to inform another person of something. For example, "Please "let somebody know" if you can't make it to the appointment".
What are some alternatives to "let somebody know"?
Alternatives include "inform someone", "notify someone", or "tell someone", depending on the context and level of formality.
Is "let someone know" or "let somebody know" more correct?
"Let someone know" and "let somebody know" are both grammatically correct and largely interchangeable. The choice often depends on personal preference or stylistic considerations.
What's the difference between "let somebody know" and "keep somebody informed"?
"Let somebody know" generally implies a one-time communication, while "keep somebody informed" suggests providing updates regularly. For example, "Let somebody know when you arrive" versus "Keep me informed of any changes".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested