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to let us know

to let us know

155 1.0
To tell us something so we can answer
  • phrasal verb
translation icon : avisarnos
  • Let us know what you find out.
  • Please let us know

If you're out there, let us know, OK?

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Examples

  • Please, let us know when you've made a decision.

  • Why not get involved and let us know what you would like to see changed?

    Academic text (2013)
  • All right, so let us know about your experience.

  • Please, please let us know what you would like.

  • I just wanted to let you know that you are all clear.

  • I will be the first to let you know if things go bad.

  • You have to let us know.

  • Well, do let us know next time.

  • If you have suggestions for improvement, let us know what they are.

    Academic text (1994)
  • Please, let us know when you've made a decision.

Synonyms

to tell
vsto let us know
1.0

Give someone information

asks for direct communication addressed specifically to us
to inform
vsto let us know
1.0

To tell someone about a fact or situation

requests that those facts be sent specifically to us
to notify
vsto let us know
  • Formal
367 3.1

Tell someone about something, often in an official way

seeks that any official notice be given specifically to us
to advise
vsto let us know
  • Formal
297 2.7

Tell someone officially about something

requests that formal communication be directed specifically to us
to keep posted
vsto let us know
62 3.5

Tell someone often about new events or changes

requests a single notification sent to us rather than ongoing updates
to apprise
vsto let us know
  • Formal
22 7.4

To tell someone about news or a change

asks for that awareness to be given specifically to us
to give notice
vsto let us know
  • Formal
20 3.7

Formally tell someone that you plan to leave a job or move out

asks for that formal professional message to be sent to us
to apprize
vsto let us know
  • Formal
9.9

To tell someone about something

directs that communication specifically to us rather than to others

How Informative

to notify
  • Formal
367 3.1
to tell
1.0
to let us know
155 1.0
to mention
1.0

Surface Forms

let us know infinitive
let us know past participle
letting us know present participle
lets us know third person singular

Morphology

let + us + know

The meaning 'to inform us' follows directly from combining 'let' (allow) with 'us' (the speaker group) and 'know' (be aware of information) — i.e., 'allow us to know' → 'tell/inform us'. This is a frequent, compositional verb + object + verb pattern in English and is readily predictable for B1 learners who know the constituent words.

Etymology

The phrase let us know comes from three simple words: let meaning 'allow', us meaning the people speaking, and know meaning 'have information'. So it literally asks someone to allow information to reach the speakers, which is why it means 'inform or notify us'.