roadblock

Compared meaning: an obstacle set up to block a road (noun).

比较义项：设置在路上阻挡通行的障碍物（名词）。

• barricade

  Emphasizes a barrier deliberately built or assembled from objects (crates, furniture, vehicles) to block people or traffic; often linked to protests, riots, or defense, and can also be used as a verb.

  强调用物品（板条箱、家具、车辆等）临时搭建起来阻挡人群或车辆的障碍物，常与示威、暴动或防御场景有关，也可用作动词。

  Rioters built a barricade of burning tires across the street.

  暴动者用燃烧的轮胎在街上筑起了一道路障。

• roadblock 本词

  A neutral, everyday word for whatever blocks a road, whether an official checkpoint set up by police or an accidental obstruction like a fallen tree; rarely used as a verb.

  是更中性、日常的说法，指任何堵住道路的东西，可能是警方设置的检查站，也可能是意外造成的阻碍（如倒下的树木）；很少用作动词。

  Police set up a roadblock to check every car leaving the city.

  警方设置了一个路障，检查每一辆离开城市的车辆。

Barricade and roadblock both mean an obstacle blocking a road, but tone differs. Barricade stresses a barrier built from objects like crates or furniture, often for protests or defense. Roadblock is a neutral word, usually a police checkpoint but sometimes accidental, like a fallen tree.

这两个词都指堵住道路的障碍物，但语气和典型场景不同：barricade 强调临时搭建、常用于示威或防御的路障，语气更强烈；roadblock 是更中性的日常用词，常指警方设置的检查站，也可能是意外造成的阻碍，例如倒下的树木。

Compared meaning: something that blocks action or progress (noun).

比较义项：阻碍行动或进展的事物、障碍（名词）。

• barrier

  Barrier is the general, more formal word for something—physical or abstract—that blocks progress, often used in fixed phrases like “language barrier” or “barrier to entry.”

  barrier是更正式、更通用的词，指阻碍进展的事物，可以是具体的，也可以是抽象的，常出现在固定搭配中，如“language barrier（语言障碍）”或“barrier to entry（进入壁垒）”。

  The language barrier made it hard for her to make friends abroad.

  语言障碍让她在国外很难交到朋友。

• roadblock 本词

  Roadblock is more informal and concrete: it originally means a barrier set up across a road to stop traffic, and figuratively it names a specific obstacle met during a process, as in “hit a roadblock.”

  roadblock更口语、更具体：本义是设在路上阻挡车辆通行的路障，比喻义则指做事过程中遇到的具体阻碍，常用于“hit a roadblock（遇到阻碍）”这样的搭配。

  Police set up a roadblock to check every car leaving the city.

  警察设置了路障，检查每一辆离开城市的车辆。

Barrier and roadblock both mean something that blocks progress. Barrier is more formal and general, used for physical or abstract obstacles. Roadblock is more informal: it first meant a barrier across a road, and now it names one specific obstacle, as in 'hit a roadblock.'

这两个词在“阻碍进展的事物”这一义项上很接近，容易混淆，但语体和典型用法不同：barrier更正式、更通用，可指具体或抽象的障碍；roadblock更口语化，本义是路上的路障，比喻义常用于“hit a roadblock”这类固定搭配。