代 is built from the 亻 (person (left)) and 式 components.
It belongs to a phonetic family with 貸 and 袋 — they share the 代 component and the reading ダイ.
A common word using 代 is ～代 (～だい), meaning “~ age; period”.
Kanji that look similar include 仕, 他, 付, and 仙.
