definition of
let out

[1] #1 let out v. express audibly; utter sounds (not necessarily words); "She let out a big heavy sigh"; "He uttered strange sounds that nobody could understand". wn

[2] #2 let out v. make known to the public information that was previously known only to a few people or that was meant to be kept a secret; "The auction house would not disclose the price at which the van Gogh had sold"; "The actress won't reveal how old she is"; "bring o. wn

[3] #3 let out v. bring out of a specific state. wn

[4] #4 let out v. make (clothes) larger; "Let out that dress--I gained a lot of weight". wn