mural towers, bastions, were introduced by king Uzziah (2Ch 26:15; Zep 1:16; Ps 48:13; Isa 26:1). There are five Hebrew words so rendered in the Authorized Version, but the same word is also variously rendered.
And in Jerusalem he made machines, the invention of expert men, to be placed on the towers and angles of the walls for sending arrows and great stones. And his name was honoured far and wide; for he was greatly helped till he was strong.
In that day will this song be made in the land of Judah: We have a strong town; he will make salvation our walls and towers.
A day of sounding the horn and the war-cry against the walled towns and the high towers.
Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain