English to English

noun (n)

• the hollow under the arm where it is joined to the shoulder

  lembah di bawah lengan tempatnya bergabung ke bahu

  Synonym:
  armpit, axillary cavity, axillary fossa
  

  source: wordnet30
• The armpit, or the cavity beneath the junction of the arm and shoulder.

  the ketiak, atau rongga bawah persimpangan dari lengan dan bahu.

  source: webster1913