技 is built from the 扌 (hand (left)) and 支 components.
It belongs to a phonetic family with 岐 and 伎 — they share the 支 component and the reading ギ.
A common word using 技 is 技術 (ぎじゅつ), meaning “technique, technology, skill”.
Don't confuse it with 枝, 岐, 伎, and 支.
