(すいへい)

すいへい
noun, na-adjective
horizontal, level
1. horizontal, level
Parallel to the horizon; flat and even, not sloping.
Please check if the shelf is level.
The setting sun is sinking below the horizon.
水平線 = horizon (at sea)
This desk isn't level, so pens roll off.

水平(すいへい) means horizontal or level, contrasting with 垂直(すいちょく) (vertical). It's used in construction, design, and everyday contexts.

COMMON COMPOUNDS:

CONTRAST:

NOTE: The 地平線(ちへいせん) refers to the horizon on land, while 水平線(すいへいせん) refers to the horizon at sea.