A person or thing of the same age as another.

एक ही उम्र का व्यक्ति या चीज।

English Usage: They have been friends since childhood; they are coeval.

Hindi Usage: वे बचपन से दोस्त हैं; वे एक ही उम्र के हैं।

Existing or occurring during the same period.

एक ही अवधि के दौरान अस्तित्व में या हो रहा।

English Usage: The fossils were found in strata that were coeval with the dinosaurs.

Hindi Usage: ये जीवाश्म उन स्तरों में पाए गए थे जो डायनासोर के समकालीन थे।