Definition
a desert; especially (with the article prefix) the (generally) sterile valley of the Jordan and its continuation to the Red Sea
Derivation
from H6150 (עָרַב) (in the sense of sterility);
King James Version Usage
Arabah, champaign, desert, evening, heaven, plain, wilderness. See also H1026 (בֵּית הָעֲרָבָה).