KJV Dictionary Definition: fortress
1. Any fortified place; a fort; a castle; a strong hold; a place of defense or security. The English have a strong fortress on the rock of Gibraltar, or that rock is a fortress.
2. Defense; safety; security;
The Lord is my rock, and my fortress. Ps. 18.
FOR'TRESS, v.t. To furnish with fortresses; to guard; to fortify.
FOR'TRESSED, a. Defended by a fortress; protected; secured.