let somebody in on something phrasal verb (see also let)
to tell something that is secret or only known by a few people:
TV chef Raymond Blanc lets us in on the secrets of his kitchen.
Would someone mind letting me in on the joke?

[TahlilGaran] Dictionary of Contemporary English ▲

let in on
let (someone) in on (something)
to tell someone a secret.
Bill, could you let me in on your techniques for getting along with girls?

The plan was so well guarded they only let three people in on it.

Related vocabulary: horn in on someone/something, in on something

[TahlilGaran] English Idioms Dictionary ▲

let in on something
let (someone) in on (something)
to tell someone a secret.
Bill, could you let me in on your techniques for getting along with girls?

The plan was so well guarded they only let three people in on it.

Related vocabulary: horn in on someone/something, in on something

[TahlilGaran] English Idioms Dictionary ▲

let in on
tell someone a secret
We let our friend in on our secret plan to sell our apartment and buy a house.

[TahlilGaran] English Idioms Dictionary ▲

let in on something
tell someone a secret
We let our friend in on our secret plan to sell our apartment and buy a house.

[TahlilGaran] English Idioms Dictionary ▲

let someone in on
let (someone) in on (something)
to tell someone a secret.
Bill, could you let me in on your techniques for getting along with girls?

The plan was so well guarded they only let three people in on it.

Related vocabulary: horn in on someone/something, in on something

[TahlilGaran] English Idioms Dictionary ▲

let someone in on something
let (someone) in on (something)
to tell someone a secret.
Bill, could you let me in on your techniques for getting along with girls?

The plan was so well guarded they only let three people in on it.

Related vocabulary: horn in on someone/something, in on something

[TahlilGaran] English Idioms Dictionary ▲

let someone in on
tell someone a secret
We let our friend in on our secret plan to sell our apartment and buy a house.

[TahlilGaran] English Idioms Dictionary ▲

let someone in on something
tell someone a secret
We let our friend in on our secret plan to sell our apartment and buy a house.

[TahlilGaran] English Idioms Dictionary ▲