Ancient means very old. Sometimes there's a sense of "older than old." My grandmother, bless her soul, lived until she was positively ancient.

Ancient art is that made in places and times we refer to as Ancient Greece, Ancient Rome and Ancient Egypt, and "an ancient" is someone who lived either during those eras, or in a Biblical context, before the flood that brought us the story of Noah and the Ark.

Definitions of ancient

adj 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”
earlier than the present time; no longer current

adj very old

“an ancient mariner”
(used especially of persons) having lived for a relatively long time or attained a specific age

n a person who lived in ancient times

Type of:
individual, mortal, person, somebody, someone, soul
a human being

n a very old person

Type of:
golden ager, old person, oldster, senior citizen
an elderly person

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