排
pái · HSK 2
stand in line
🚶♂️🚶♀️ 排 = 手 (hand) + 非 (not/opposing) — hands pushing things into a row
The 扌 radical means hand; 非 originally depicted opposing wings, suggesting things lined up side by side. Together: hands arranging items in a sequence. Sound pái also appears in 排队 (line up) and 安排 (arrange).
排 — hand radical 扌 + 非 (fēi, phonetic)
A semantic-phonetic compound: the hand radical 扌 gives the meaning (an action done with the hands), while 非 supplies the sound. The original sense was to push or shove aside with the hand, which extended to arranging things in a row, hence modern meanings like 'to arrange,' 'a row,' or 'to reject.'