This is an informal way to say that you will not reveal the secret.
Idiom: To have one’s lips sealed
This is an informal way to say that you will not reveal the secret.
Idiom: Proud as a peacock
Idiom: On the same page
Idiom: Think outside the box
Idiom: Music to my ears
Here is one more idiom that you can use.
Idiom: A ray of hope
Idiom: Spick and span
Idiom: To open one’s heart
Idiom: Bite the bullet
Idiom: No gain without pain
Idiom: A tough cookie
