contemporary

CONTEMPORARY, a. [L., time. For the sake of easier pronunciation and a ore agreeable sound, this word is often changed to cotemporary.] Coetaneous; living at the same time, applied to persons; being or existing at the same time, applied to things; as contemporary kings; contemporary events. [See Cotemporary, the preferable word.]

CONTEMPORARY, n. One who lives at the same time with another.

Socrates and Plato were contemporaries.