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History
History
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Meaning:
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something that stops progress or makes it difficult

impediment, barrier

bump difficulty disincentive handicap hardship hindrance hitch hurdle interference obstruction restriction snag stumbling block bar block catch check clog crimp encumbrance hamper hang-up interruption joker mountain rub traverse vicissitude Catch-22 booby trap monkey wrench
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Cases of word usage

1) an obstacle built across a river to store water for irrigation (barrage)

2) to catch (something) in an obstacle (entangle)

OBSTACLE as in Wiktionary
OBSTACLE as in Wikipedia