barrier

As nouns the difference between hoarding and barrier

is that hoarding is a temporary fence-like structure built around building work to add security and prevent accidents to the public while barrier is a structure that bars passage.

As a verb hoarding

is present participle of lang=en.

As nouns the difference between bollards and barrier

is that bollards is while barrier is a structure that bars passage.

As a noun barrier

is a structure that bars passage.

As a verb obstructed is

past tense of obstruct.

As nouns the difference between barrier and challenges

is that barrier is a structure that bars passage while challenges is plural of lang=en.

As a verb challenges is

third-person singular of challenge.

As nouns the difference between threshold and barrier

is that threshold is the bottom-most part of a doorway that one crosses to enter; a sill while barrier is a structure that bars passage.

As nouns the difference between challenge and barrier

is that challenge is a confrontation; a dare while barrier is a structure that bars passage.

As a verb challenge

is to invite someone to take part in a competition.

As nouns the difference between roadblock and barrier

is that roadblock is something that blocks or obstructs a road while barrier is a structure that bars passage.

As a verb roadblock

is (colloquial) to prevent, hinder.

As nouns the difference between barrier and hinderance

is that barrier is a structure that bars passage while hinderance is .

As nouns the difference between barrier and problem

is that barrier is a structure that bars passage while problem is a difficulty that has to be resolved or dealt with.

As an adjective problem is

difficult to train or guide; unruly.

As a noun barrier

is a structure that bars passage.

As an adjective fort is

.

As a verb fort is

.