排 is built from the 扌 (hand (left)) and 非 components.
It belongs to a phonetic family with 俳 and 輩 — they share the 非 component and the reading ハイ.
A common word using 排 is 排除 (はいじょ), meaning “exclusion, removal, rejection”.
Kanji that look similar include 捨, 据, 掃, and 授.
