貢 is built from the 工 and 貝 components.
It reads コウ like 工, as do 攻, 江, 功, and 項 — learn 工 once and the family's reading comes with it.
A common word using 貢 is 貢献 (こうけん), meaning “contribution, services”.
Kanji that look similar include 差, 紅, 虹, and 尋.
