The kanji 鋼 represents "steel" or "hard metal." It signifies strength, durability, and the characteristic properties associated with steel, such as its ability to withstand significant force and its use in construction and tools. It can also imply a sense of resilience or firmness.

・On-yomi (音読み): こう (kō) ・Kun-yomi (訓読み): はがね (hagane)

⚫︎ 鋼鉄 Translation: steel ⚫︎ 鋼の意志 Translation: iron will; strong determination ⚫︎ 刃物鋼 Translation: steel for cutting tools

The kanji 鋼 is a phono-semantic compound (形声文字, けいせいいもじ). The left side of the character is a "metal" radical (金, かね, kin), indicating its association with metals. The right side is 岡 (oka), which signifies "hill" or "high ground," and it originally indicated a form of phonetic component. Together, the components imply a strong, metallic material, thus representing "steel." The phonetic component "岡" gives the sound. Historically, the character was created to represent a strong metal similar to iron, and its use gradually expanded to encompass various steel alloys.