let us

Also found in: Idioms, Wikipedia.
Related to let us: let's


let us
1. let's

You use let's when you are suggesting that you and someone else should do something. Let's is short for 'let us'. It is followed by an infinitive without to.

Let's go outside.
Let's decide what we want.

The full form let us is used with this meaning only in formal English.

Let us postpone the matter.

If you are suggesting that you and someone else should not do something, you say let's not.

Let's not talk about that.
Let's not waste time.
2. 'let us'

When you are talking about you and someone else being allowed to do something, use let us.

They wouldn't let us leave.
His mum let us stay there for free.

You can use let us when you are making a request on behalf of yourself and someone else. In sentences like these, don't shorten let us to 'let's'.

Let us know what progress has been made.
References in classic literature ?
Let us all take more responsibility, not only for ourselves and our families, but for our communities and our country.
Let us suppose, gentle reader, that it is now the year of the world three thousand eight hundred and thirty, and let us, for a few minutes, imagine ourselves at that most grotesque habitation of man, the remarkable city of Antioch.
"You are a capital fellow, Planchet; come on, then, let us sup, and I will go to bed."
LET us hurry to the walls," said Abel-Phittim to Buzi-Ben-Levi and Simeon the Pharisee, on the tenth day of the month Thammuz, in the year of the world three thousand nine hundred and fortyone--let us hasten to the ramparts adjoining the gate of Benjamin, which is in the city of David, and overlooking the camp of the uncircumcised; for it is the last hour of the fourth watch, being sunrise; and the idolaters, in fulfilment of the promise of Pompey, should be awaiting us with the lambs for the sacrifices."
"Let us, I beseech thee, turn aside from this comfortless road leading, thou knowest whither, but not I.
But let us assume that what is called science can harmonize all contradictions and possesses an unchanging standard of good and bad by which to try historic characters and events; let us say that Alexander could have done everything differently; let us say that with guidance from those who blame him and who profess to know the ultimate aim of the movement of humanity, he might have arranged matters according to the program his present accusers would have given him- of nationality, freedom, equality, and progress (these, I think, cover the ground).
With a good conscience our only sure reward, with history the final judge of our deeds; let us go forth to lead the land we love, asking His blessing and His help, but knowing that here on earth God's work must truly be our own.
"Hear me, count," replied D'Artagnan; "instead of making compliments to each other, let us explain our conduct to each other, like men of right and honest hearts."
You who gave me your heart, Let us join hands and depart!
Let us descend, take the big brother's purse and convert all these coins into bottles!"
"And now, my dear companions," said Michel Ardan, "let us make ourselves at home; I am a domesticated man and strong in housekeeping.
"Do not let us give up so easily," said the Pumpkinhead.