Definition (full): to gleam, be cheerful, to sound clear
Strong's Exhaustive Concordance
A prim root; to gleam, i.e. (figuratively) be cheerful; by transf. To sound clear (of various animal or human expressions) -- bellow, cry aloud (out), lift up, neigh, rejoice, make to shine, shout.
KJV: And Mordecai went out from the presence of the king in royal apparel of blue and white, and with a great crown of gold, and with a garment of fine linen and purple: and the city of Shushan rejoiced and was glad.
NASB: Then Mordecai went out from the presence of the king in royal robes of blue and white, with a large crown of gold and a garment of fine linen and purple; and the city of Susa shouted and rejoiced.