才 is built from the 十 and 丿 (slash / sweep) components.
It belongs to a phonetic family with 財 and 材 — they share the 才 component and the reading サイ.
A common word using 才 is 才能 (さいのう), meaning “talent, ability”.
Kanji that look similar include 千, 十, 汁, and 由.
