Webster’s Revised Unabridged Dictionary · 1913
Bulwark
Bul′wark (·wŭrk), n. [Akin to D. bolwerk, G. bollwerk, Sw. bolwerk, Dan. bolvärk, bulvärk, rampart; akin to G. bohle plank, and werk work, defense. See Bole stem, and Work, n., and cf. Boulevard.] 1. (Fort.) A rampart; a fortification; a bastion or outwork.
2. That which secures against an enemy, or defends from attack; any means of defense or protection.
The royal navy of England hath ever been its greatest defense, . . . the floating bulwark of our island. Blackstone.
3. pl. (Naut.) The sides of a ship above the upper deck.
Syn. — See Rampart.
Bul′wark, v. t. [imp. & p. p. Bulwarked; p. pr. & vb.n. Bulwarking.] To fortify with, or as with, a rampart or wall; to secure by fortification; to protect.
Of some proud city, bulwarked round and armed With rising towers. Glover.