Definition of let out

• express audibly; utter sounds (not necessarily words); "She let out a big heavy sigh"; "He uttered strange sounds that nobody could understand"
• 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 wont reveal how old she is"; "bring out the truth"; "he broke the news to her"; "unwrap the evidence in the murder case"
• bring out of a specific state