• 黄色きいろ — yellow
• 黄身きみ — egg yolk
• 黄河こうが — Yellow River (China)
• 黄金おうごん — gold
• 黄熱病おうねつびょう — yellow fever
• 黄きばむ — to yellow / discolor

This kanji is used widely for colors, food, nature, and symbolic meanings such as richness, caution, or brightness.