verb (v)

• express audibly; utter sounds (not necessarily words)(verb.communication)

  Example:
  She let out a big heavy sigh.
  

  Synonym:
  emit, let loose, utter
  

  source: wordnet30
• make known to the public information that was previously known only to a few people or that was meant to be kept a secret(verb.communication)

  Synonym:
  break, bring out, disclose, discover, divulge, expose, give away, let on, reveal, unwrap
  

  source: wordnet30
• bring out of a specific state(verb.contact)

  Synonym:
  bring out
  

  source: wordnet30
• make (clothes) larger(verb.change)

  Example:
  Let out that dress--I gained a lot of weight.
  

  Synonym:
  widen
  Antonym:
  take in
  

  source: wordnet30