遮 means “block, screen off, interrupt”

さえぎる · saegiru

Also: intercept, obstruct

Kun'yomi (Japanese reading)
さえぎる
On'yomi (Chinese reading)
シャ

JLPT N1 · Taught in secondary school · 14 strokes

The story

Moving (辶) through a crowd of commoners (庶) that blocks the way: cut off. 遮る is to block, or to interrupt someone mid-sentence, 遮光カーテン are blackout curtains, and the striped bar that drops at every railroad crossing is a 遮断機.

Used in 遮る (saegiru, to block/interrupt), 遮断 (shadan, cutoff/blocking), and 遮光 (shakou, blocking light)

More from Block & Refuse

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.