Definition of Barrier

1. Noun. A structure or object that impedes free movement.

2. Noun. Any condition that makes it difficult to make progress or to achieve an objective. "Intolerance is a barrier to understanding"
Exact synonyms: Roadblock
Generic synonyms: Obstacle, Obstruction
Specialized synonyms: Ideological Barrier, Language Barrier

3. Noun. Anything serving to maintain separation by obstructing vision or access.
Specialized synonyms: Bar, Blood-brain Barrier, Curtain
Generic synonyms: Mechanism

Definition of Barrier

1. n. A carpentry obstruction, stockade, or other obstacle made in a passage in order to stop an enemy.

Definition of Barrier

1. Noun. A structure that bars passage. ¹

2. Noun. An obstacle or impediment. ¹

3. Noun. A boundary or limit. ¹

¹ Source:

Definition of Barrier

1. an obstacle [n -S] - See also: obstacle

Medical Definition of Barrier

1. An obstruction. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Barrier Pictures

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Lexicographical Neighbors of Barrier

barrier (current term)
barrier board
barrier boards
barrier island
barrier methods
barrier reef
barrier strip

Literary usage of Barrier

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Cambridge Modern History by John Emerich Edward Dalberg Acton Acton, Ernest Alfred Benians, Sir Adolphus William Ward, George Walter Prothero (1909)
"The Treaty concluded on November 16, 1715, with a view to the establishment of a "barrier" against the ambition of France, granted to the United Provinces ..."

2. The South Pole: An Account of the Norwegian Antarctic Expedition in the by Roald Amundsen (1913)
"The next great problem that confronted us was to find a suitable place on the barrier for our station. My idea had been to get everything—equipment and ..."

3. The Complete Works of Gustave Flaubert: Embracing Romances, Travels by Gustave Flaubert, Ferdinand Brunetière (1904)
"But at a hundred paces from the barrier his coachman made him descend and turn back. Frederick was walking along the pathway, when suddenly a sentinel ..."

4. The Voyage of the Beagle by Charles Darwin (1909)
"... Areas interspersed with low Coral Islands—Subsidence of their foundations—barrier Reefs—Fringing Reefs—Conversion of Fringing Reefs into barrier Reefs, ..."

5. The Invasion of the Crimea: Its Origin and an Account of Its Progress Down by Alexander William Kinglake (1875)
"Again and again assailed, he so surely defence beat back all the masses surging up to attack him in barrier, front, or striving to turn his right flank, ..."

6. The Harvard Classics by Charles William Eliot (1909)
"... Areas interspersed with low Coral Islands—Subsidence of their foundations—barrier Reefs—Fringing Reefs—Conversion of Fringing Reefs into barrier Reefs, ..."

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