Definify.com
Webster 1913 Edition
Barrier
1. 
(Fort.) 
A carpentry obstruction, stockade, or other obstacle made in a passage in order to stop an enemy. 
2. 
A fortress or fortified town, on the frontier of a country, commanding an avenue of approach. 
3. 
pl. 
A fence or railing to mark the limits of a place, or to keep back a crowd. 
No sooner were the 
barriers 
opened, than he paced into the lists. Sir W. Scott.
4. 
Any obstruction; anything which hinders approach or attack. 
“Constitutional barriers.” Hopkinson.
 5. 
Any limit or boundary; a line of separation. 
’Twixt that [instinct] and reason, what a nice 
barrier
! Pope.
Barrier gate
, a heavy gate to close the opening through a barrier. 
– Barrier reef
, a form of coral reef which runs in the general direction of the shore, and incloses a lagoon channel more or less extensive. 
– To fight at barriers
, to fight with a barrier between, as a martial exercise. 
[Obs.]
 Webster 1828 Edition
Barrier
BAR'RIER.
[See bar]1.
  In fortification, a kind of fence made in a passage or retrenchment, composed of great stakes, with transums or overthwart rafters, to stop an enemy.2.
  A wall for defense.3.
 A fortress or fortified town on the frontier of a country.4.
  Any obstruction; any thing which confines, or which hinders approach,or attack; as constitutional barriers.5.
  A bar to mark the limits of a place; any limit, or boundary; a line of separation.Definition 2025
barrier
barrier
English
Noun
barrier (plural barriers)
- A structure that bars passage.
 -  An obstacle or impediment.
-  2013 June 1, “Towards the end of poverty”, in The Economist, volume 407, number 8838, page 11:
- America’s poverty line is $63 a day for a family of four. In the richer parts of the emerging world $4 a day is the poverty barrier. But poverty’s scourge is fiercest below $1.25 ([…]): people below that level live lives that are poor, nasty, brutish and short.
 
 
 -  
 - A boundary or limit.
 - (grammar) A node (in government and binding theory) said to intervene between other nodes A and B if it is a potential governor for B, c-commands B, and does not c-command A.
 - (physiology) A separation between two areas of the body where specialized cells allow the entry of certain substances but prevent other substances to enter.
 
Derived terms
Derived terms
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Synonyms
- See also Wikisaurus:hindrance
 
Translations
structure that bars passage
  | 
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obstacle or impediment
boundary or limit