old in WordNet English dictionary

1. belonging to some prior time
   "erstwhile friend"; "our former glory"; "the once capital of the state"; "her quondam lover"
   erstwhile  former  old  onetime  one-time  quondam  sometime 
   
2. (used informally especially for emphasis)
   "a real honest-to-god live cowboy"; "had us a high old time"; "went upriver to look at a sure-enough fish wheel"
   honest-to-god  honest-to-goodness  old  sure-enough 
   
3. of long duration; not new
   "old tradition"; "old house"; "old wine"; "old country"; "old friendships"; "old money"
   old 
   
4. (used especially of persons) having lived for a relatively long time or attained a specific age
   "his mother is very old"; "a ripe old age"; "how old are you?"
   old 
   
5. skilled through long experience
   "an old offender"; "the older soldiers"
   old  older 
   
6. (used for emphasis) very familiar
   "good old boy"; "same old story"
   old 
   
7. just preceding something else in time or order
   "the previous owner"; "my old house was larger"
   previous  old 
   

1. past times (especially in the phrase `in days of old')
   old