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 won”
• “;”

bring out of a specific state

make (clothes) larger

• “Let out that dress--I gained a lot of weight”