shade, shadow, backing assistance
蔭 centers on protective cover that blocks light or provides hidden support: literal shade or shadow, and figurative backing assistance that works unseen.
蔭 combines 艹 (grass) with 陰 (shade, shadow), which also provides the sound. The grass top reinforces the idea of shade from vegetation.
Grass 艹 over 陰 (shade) makes a doubly shady spot: plants create cool shadow, and hidden help grows quietly underneath.
For イン, picture an inn nestled under shady trees: inn -> イン, and the grass-covered shade keeps it cool and hidden.
Osaka Tōin Junior and Senior High School (abbr)
Osaka Shoin Women's University
mass Ise pilgrimage (occurring intermittently during the Edo period)
Shoin University
Shouin Women's Junior College
Toin University of Yokohama
Toin University of Yokohama
Shouin Women's University
Shouinhigashi Women's Junior College
Kobe Shoin Women's University
thicket