let (one) know

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let (one) know

To tell or inform one (of or about something). Be sure to let me know if anything changes between now and then. I let the boss know about the development yesterday.
See also: know, let
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

let someone know (about something)

to tell someone something; to inform someone of something. Please let me know about it soon. Will you be coming to the picnic? Please let me know.
See also: know, let
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

let somebody ˈknow

tell somebody about something: I don’t know if I can come, but I’ll let you know soon.Let me know how I can help.
See also: know, let, somebody
Farlex Partner Idioms Dictionary © Farlex 2017
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References in periodicals archive ?
"Let them know who we are, what we believe in and what we are willing to do to accomplish our goals.
I'm still looking for old school friends so if you know any of the following people could you please let them know about the reunion.
If you want to let them know because you're hoping for some fairy-tale ending then I'd be very wary.
On Saturday they made an appeal for the Coleg Menai student to come home or let them know he was safe as concern grows for his welfare.
I catch hell trying to let them know that hip-hop artists are big enough to be the face of Fortune 500 brands.
Make an appointment to visit your local district office and let them know you are the one they should be calling with questions regarding disabled veterans and their families.
"My students will get to reach out to the Hispanic soldiers and let them know how important they are to us," says Lee.
"We let them know these are real and normal feelings; they're normal for a lot of people."
They can inform them about the extent to which their personal and financial information will become public--and let them know that they must meet all the disclosure requirements of the bankruptcy statutes.
We send a letter to the top junior prospects (fall seniors) and let them know we are going to be watching them.
The 175-pound pallets of medical supplies and personal hygiene items will help make the local citizens' lives easier and let them know that the United States and its Navy are interested in helping them.
Let them know that you are interested in health, and AIDS.