Etymology
Advertisement

barrier (n.)

"anything meant to obstruct entrance," early 14c., barere, from Anglo-French barrere, Old French barriere "obstacle, gatekeeper," from barre "bar" (see bar (n.1)). First record of barrier reef is from 1805.

Advertisement
Advertisement
Definitions of barrier

barrier (n.)
a structure or object that impedes free movement;
barrier (n.)
any condition that makes it difficult to make progress or to achieve an objective;
intolerance is a barrier to understanding
Synonyms: roadblock
barrier (n.)
anything serving to maintain separation by obstructing vision or access;
From wordnet.princeton.edu