rain
雨 centers on water falling from the sky: rain.
雨 is a pictograph of rain falling from a cloud. The horizontal line represents the sky, and the dots are raindrops.
The top horizontal line is the sky, and the four dots are raindrops falling down. Together they make 雨, rain.
For ウ, imagine rain falling on a u-shaped valley: the u sound cues ウ while the rain fills the valley.
rain
heavy rain; torrential rainfall; downpour
torrential rain; heavy rain; cloudburst; downpour
(East Asian) rainy season (in Japan, usu. from early June to mid-July)
rain shower in late autumn (fall) or early winter
rainy weather
rainfall; rain
rain water
thunderstorm; thundershower
light rain; drizzle
rainstorm; storm
(amount of) rainfall
roof leak
rain cloud
wind and rain
rainy season
rainfall; rainy weather; rain
taking shelter from rain
drizzle; light rain
sliding storm shutter
entering the rainy season; beginning of the rainy season
rain gear
long spell of rain
raindrops (dripping from eaves, branches, etc.)