bastion

As a noun bastion

is bastion.

As an adjective undefined is

lacking a definition or value.

As a noun bastion

is bastion.

As a proper noun hold is

moon.

As nouns the difference between bastion and redoubt

is that bastion is bastion while redoubt is a small, temporary, military fortification.

As a verb redoubt is

(archaic) to dread.

As nouns the difference between bastion and vallation

is that bastion is bastion while vallation is a rampart or entrenchment.

As nouns the difference between bastion and protection

is that bastion is bastion while protection is the process of keeping (something or someone) safe.

As nouns the difference between countenance and bastion

is that countenance is appearance, especially the features and expression of the face while bastion is bastion.

As a verb countenance

is to tolerate, support, sanction, patronise or approve of something.

As nouns the difference between bastion and sanctuary

is that bastion is a projecting part of a rampart or other fortification while sanctuary is a place of safety, refuge, or protection.

As nouns the difference between crimp and bastion

is that crimp is a fastener or a fastening method that secures parts by bending metal around a joint and squeezing it together, often with a tool that adds indentations to capture the parts or crimp can be an agent making it his business to procure seamen, soldiers, etc, especially by seducing, decoying, entrapping, or impressing them [since the passing of the merchant shipping act of 1854, applied to one who infringes sub-section 1 of this act, ie to a person other than the owner, master, etc, who engages seamen without a license from the board of trade] while bastion is bastion.

As an adjective crimp

is (obsolete) easily crumbled; friable; brittle.

As a verb crimp

is to fasten by bending metal so that it squeezes around the parts to be fastened or crimp can be to impress (seamen or soldiers); to entrap, to decoy.

As nouns the difference between bastion and fastness

is that bastion is a projecting part of a rampart or other fortification while fastness is a secure or fortified place; a stronghold, a fortress.

As a noun bastion

is bastion.

As a verb barricade is

.