Also see definition of "Bulwark" in Word Study
Bulwark [nave]
BULWARKSee: Siegeworks.
BULWARK [isbe]
BULWARK - bool'-wark: The word represents several Hebrew terms (chel, Isa 26:1; chelah, Ps 48:13; matsodh, Eccl 9:14; matsor, Dt 20:20). In 2 Ch 26:15 the word is translated in the Revised Version (British and American) "battlements."See FORTIFICATION.
Also see definition of "Bulwark" in Word Study