The kanji 腕 generally refers to the "arm," specifically the part of the body between the shoulder and the wrist. It encompasses the upper arm, lower arm, and sometimes the entire arm. It can also figuratively represent skill or ability, derived from the physical strength and control associated with the arm.

・On-yomi (音読み): ワン (wan) ・Kun-yomi (訓読み): うで (ude)

⚫︎ 右腕 Translation: Right-hand man; main supporter. ⚫︎ 腕力 Translation: Arm strength; physical strength. ⚫︎ 腕がいい Translation: To be skillful; to be good at something (literally, "the arm is good").

The kanji 腕 is a phono-semantic compound (形声文字, keisei moji). The left side is 月 (tsuki/getsu), which, when found in a kanji, often indicates a connection to the body or flesh. The right side is 宛 (en), which provides the phonetic component, indicating the pronunciation. Therefore, 腕 originally depicted the physical arm by combining the radical related to flesh with a sound component. The character evolved over time to its current form.