検 is built from the 木 and 僉 (all / together (in 検·険)) components.
It belongs to a phonetic family with 験, 険, 剣, and 倹 — they share the 僉 component and the reading ケン.
A common word using 検 is 検査 (けんさ), meaning “inspection, examination”.
Don't confuse it with 験, 険, 倹, and 剣 — 馬 test, 阝 steep, 木 examine, 亻 frugal
