intransitive To cave in; to fall inwards, creating a hollow.
单词 | θ108456 |
释义 | the world > movement > motion in a certain direction > downward motion > falling > fall [verb (intransitive)] > collapse > inwards (5) to sink in1530 intransitive To cave in; to fall inwards, creating a hollow. to fall in1611 intransitive. Of a roof, wall, building, etc.: to collapse inwards; to cave in. In later use sometimes more fully to fall in on itself. Also figur… to cave in1707 to cave in: to fall in over a hollow, as the earth on the side of a pit or cutting; to fall in in a concave form, as when the front of a vertical… to run in1747 intransitive. Of a mineshaft, cave, etc.: to collapse; to cave in. Cf. sense 52b. cave1848 Without in. |
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