100 Other Words for “Barrier”

No.	Term	Definition
1.	Abatis	Felled-tree defense obstacle.
2.	Abrasive boundary	Harsh dividing line or limit.
3.	Access control	Restriction on entry or use.
4.	Airlock	Sealed chamber preventing pressure exchange.
5.	Anticlimb paint	Coating deterring climbing attempts.
6.	Arboreal hedge	Tree line forming a block.
7.	Baffle	Device that blocks or redirects flow.
8.	Bamboo screen	Light partition for privacy or shade.
9.	Barricade	Temporary obstruction to stop passage.
10.	Berm	Raised bank used as a block.
11.	Blockade	Forceful prevention of passage or trade.
12.	Bollard	Short post preventing vehicle access.
13.	Boom gate	Pivoting arm controlling entry.
14.	Border	Dividing line between areas.
15.	Bulkhead	Partition wall in ships or aircraft.
16.	Bulwark	Strong defense or protective wall.
17.	Cable fence	Tensioned cables forming a perimeter.
18.	Catch fence	Fence that stops falling rocks.
19.	Caution tape	Tape marking restricted areas.
20.	Chain-link fence	Wire mesh fence for security.
21.	Channel marker	Guide that keeps movement within bounds.
22.	Checkpoint	Controlled passage point.
23.	Chicane	Obstacle forcing a winding path.
24.	Cordon	Line restricting access around an area.
25.	Curb	Raised edge limiting movement.
26.	Dam	Structure blocking water flow.
27.	Deadbolt	Locking bolt securing a door.
28.	Demarcation line	Official dividing line.
29.	Deterrent	Thing that discourages action.
30.	Dike	Embankment holding back water.
31.	Dividing line	Boundary separating two things.
32.	Door	Movable entry block.
33.	Doorstop	Wedge preventing door movement.
34.	Drawbridge	Lifted bridge blocking passage.
35.	Earthen bank	Soil ridge forming an obstacle.
36.	Embankment	Raised earthwork blocking or supporting.
37.	Enclosure	Surrounding structure that confines.
38.	Entry restriction	Rule limiting access.
39.	Exclusion zone	Area closed to entry.
40.	Fence	Structure enclosing or separating land.
41.	Firewall	Security system blocking network access.
42.	Floodgate	Gate controlling water passage.
43.	Fortification	Defensive structure protecting a place.
44.	Gate	Movable part controlling entry.
45.	Gatehouse	Building controlling access through a gate.
46.	Glass ceiling	Invisible limit on advancement.
47.	Guardrail	Rail preventing falls or crossings.
48.	Hedge	Dense shrubs forming a boundary.
49.	Hurdle	Obstacle to overcome.
50.	Impediment	Thing that slows progress.
51.	Inhibition	Internal restraint on action.
52.	Insulation	Material limiting heat or sound transfer.
53.	Interdict	Official prohibition blocking activity.
54.	Jersey barrier	Concrete divider for traffic lanes.
55.	Jetty	Structure blocking waves, guiding water.
56.	Junction control	Restriction at crossing points.
57.	Keypad lock	Code lock limiting entry.
58.	Kill switch	Device that stops operation.
59.	Knockout block	Stop that prevents movement.
60.	Lattice	Crisscross framework forming a screen.
61.	Levee	Embankment preventing flooding.
62.	Limit	Point beyond which one cannot go.
63.	Lock	Device securing against entry.
64.	Low wall	Short wall forming a boundary.
65.	Maginot line	Strong defensive line, figuratively.
66.	Moat	Ditch around a fortification.
67.	Monitor line	Watched boundary controlling movement.
68.	Obstacle	Thing that stands in the way.
69.	Obstruction	Something that blocks a way.
70.	Out-of-bounds line	Mark showing forbidden area.
71.	Palisade	Fence of stakes for defense.
72.	Partition	Divider separating spaces.
73.	Perimeter	Outer boundary of an area.
74.	Picket fence	Fence of spaced vertical slats.
75.	Plug	Stopper blocking an opening.
76.	Portcullis	Heavy grating blocking a gateway.
77.	Prohibition	Rule forbidding an action.
78.	Quarantine	Isolation preventing spread.
79.	Quay wall	Harbor wall limiting access.
80.	Rail	Bar forming a protective boundary.
81.	Rampart	Defensive wall or embankment.
82.	Red line	Limit that must not be crossed.
83.	Restraining order	Legal order limiting contact or approach.
84.	Roadblock	Block placed to stop traffic.
85.	Rope line	Rope marking a restricted boundary.
86.	Safety screen	Shield preventing contact or harm.
87.	Sanction	Penalty discouraging prohibited acts.
88.	Screen	Partition that blocks view or access.
89.	Seawall	Wall protecting coast from waves.
90.	Separator	Thing that keeps parts apart.
91.	Shield	Protective cover blocking harm.
92.	Sluice gate	Gate controlling water flow.
93.	Speed bump	Raised strip slowing vehicles.
94.	Stile	Step-over structure across a fence.
95.	Stopper	Object that blocks an opening.
96.	Strainer	Device blocking solids from passing.
97.	Turnstile	Rotating gate controlling entry.
98.	Undergrowth	Dense plants obstructing movement.
99.	Underpass barrier	Height limit preventing tall vehicles.
100.	Unscalable wall	Wall designed to prevent climbing.