隙間

1. Origins, structure, and basic meaning

• Structure: 隙間 is read as すきま and is a noun for a narrow gap, crevice, or open space between objects.
• Basic usage: A cat poking its face through a door gap appears in 扉の隙間から顔を出す, while a pencil being in the gap between a shelf and wall appears in 棚と壁の隙間に鉛筆がある.

2. Common pitfalls and similar expressions

• Opening から and location に
  • Use から for emerging through the opening and に for an object located within the gap.
• Difference from 間
  • Unlike the broad word for an interval in space, time, or relations, this term focuses on a narrow physical opening.