What is the meaning of bold?

noun

• A typeface with thick heavy lines.
  • synonyms: boldface, bold face

adjective

• Fearless and daring.
  • usage: "bold settlers on some foreign shore"; "a bold speech"; "a bold adventure"
• Clear and distinct.
  • usage: "bold handwriting"; "a figure carved in bold relief"; "a bold design"
• Very steep; having a prominent and almost vertical front.
  • usage: "a bluff headland"; "where the bold chalk cliffs of England rise"; "a sheer descent of rock"
  • synonyms: bluff, sheer