曹 is built from the 一, 曲, and 日 components.
It belongs to a phonetic family with 遭 and 槽 — they share the 曲 component and the reading ソウ.
A common word using 曹 is 法曹 (ほうそう), meaning “legal profession; judicial officer”.
Don't confuse it with 遭 and 槽.