noun
shack; shanty; hut; temporary shelter
Refers to a roughly built, often temporary dwelling. The word is a loan from English 'barrack' but in Japanese it typically means a makeshift shack, not a military barracks.
地震の後、人々はバラックで暮らしていた。
After the earthquake, people were living in shacks.
川
Old shanties line the river.
noun
Rarely used for military barracks; the more common word is 兵舎 (へいしゃ). This sense is mostly historical or in translated contexts.
その小説では、兵士たちは古いバラックに寝泊まりしていた。
In the novel, the soldiers were quartered in old barracks.