let's know

English

Phrase

let's know

1. (South Asia) let's learn, find out, or see [about]
   • 2008, Amar Tyagi, Let's Know Handicrafts of India (Star Publications) →ISBN
   • 2021 April 23, Nimi Kurian, “Zootopia”, in The Hindu:

     On Zoo Lovers’ Day, let’s know more about India’s first zoo — the ArignarAnna Zoological Park in Chennai.

2. (colloquial, rare) let us know, get back to us, keep us posted (often us in sense me)
   • 1908, P. G. Wodehouse, “The Guardian”, in The Politeness of Princes and Other School Stories:

     Let's know when Eckleton's playing Haileybury, and I'll come and look you up. I want to see that match.

   • 1955 October 20, H. E. Bates, “The Sugar Train”, in Evening Standard, page 19:

     Let's know if you come back. Might see the sugar harvest. Have some fun. Give you a ride on the sugar train.

3. Used other than figuratively or idiomatically: see let's,‎ know.