Bastion

Thanks to Facebook, stalking is no longer the bastion of a few devoted enthusiasts, but a highly automated task convenient enough even for the busy housewife.

[…] Fort Camosun had swelled herself from being a little Hudson's Bay Fort, inside a stockade with bastions at the corners, into being the little town of Victoria, and the capital of British Columbia.

a bastion of hope

the bastion of democracy

[…] yonder cloud That rises upward always higher, ⁠And onward drags a labouring breast, ⁠And topples round the dreary west, A looming bastion fringed with fire.

It spread slowly up from the sea-rim, a welling upwards of pure white light, ghosting the beach with silver and drawing the grey bastions of sandstone out of formless space.