What is the meaning of old?

noun

• Past times (especially in the phrase `in days of old'. )

adjective

• Used especially of persons. ( having lived for a relatively long time or attained a specific age)
  • usage: "his mother is very old"; "a ripe old age"; "how old are you"
• Of long duration; not new.
  • usage: "old tradition"; "old house"; "old wine"; "old country"; "old friendships"; "old money"
• Used for emphasis. ( very familiar)
  • usage: "good old boy"; "same old story"
• Skilled through long experience.
  • usage: "an old offender"; "the older soldiers"
  • synonyms: older
• Belonging to some prior time.
  • usage: "erstwhile friend"; "our former glory"; "the once capital of the state"; "her quondam lover"
  • synonyms: erstwhile, former, onetime, one-time, quondam, sometime
• Used informally especially for emphasis. ()
  • usage: "a real honest-to-god live cowboy"; "had us a high old time"; "went upriver to look at a sure-enough fish wheel"
  • synonyms: honest-to-god, honest-to-goodness, sure-enough
• Of a very early stage in development.
  • usage: "Old English is also called Anglo Saxon"; "Old High German is High German from the middle of the 9th to the end of the 11th century"
• Just preceding something else in time or order.
  • usage: "the previous owner"; "my old house was larger"
  • synonyms: previous