The kanji 鋼こう primarily represents "steel". It refers to a strong, durable, and versatile metal alloy made primarily of iron and carbon. This kanji embodies the qualities of strength, resilience, and firmness, much like the material it represents.

・On-yomi (音読み): こう (kō) ・Kun-yomi (訓読み): None, as the primary meaning is directly represented by the On-yomi.

⚫︎鋼鉄 Translation: steel ⚫︎鋼材 Translation: steel material; steel products ⚫︎鋼の意志 Translation: a will of steel; iron will

The kanji 鋼こう is a phono-semantic compound (形声文字). The left side is the radical 金 (kin), which means "metal" or "gold", indicating that the character relates to something metallic. The right side is 岡 (oka), which means "hill" or "mound", and acts as the phonetic component, indicating the sound of the kanji. Therefore, the character's construction signifies "metal" plus "oka" (sound) to create "steel".