past times (especially in the phrase `in days of old')
of a very early stage in development; "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"
old in experience; "an old offender"; "the older soldiers"
of long duration; not new; "old tradition"; "old house"; "old wine"; "old country"; "old friendships"; "old money"
(used especially of persons) having lived for a relatively long time or attained a specific age; "an old man's eagle mind"--William Butler Yeats; "his mother is very old"; "a ripe old age"; "how old are you?"
serving in or intended for exploration or discovery; "an exploratory operation"; "exploratory reconnaissance"; "digging an exploratory well in the Gulf of Mexico"; "exploratory talks between diplomats"
an embankment built around a space for defensive purposes; "they stormed the ramparts of the city"; "they blew the trumpet and the walls came tumbling down"
belonging to times long past especially of the historical period before the fall of the Western Roman Empire; "ancient history"; "ancient civilizations such as those of the Etruscans and Sumerians"; "ancient Greece"
become or made better in quality; "was proud of his improved grades"; "an improved viewfinder"
made more desirable or valuable or profitable; especially made ready for use or marketing; "new houses are springing up on an improved tract of land near the river"; "an improved breed"
(of land) made ready for development or agriculture by clearing of trees and brush; "improved farmlands"