stage; section; phase; period; CL:個|个[ge4]
阶 (jiē) · 6 strokes
Phonosemantic compound. 阝 represents the meaning and 介 represents the sound. Simplified form of 階.
段 (Duàn) · 9 strokes
Pictograph of a hand holding a forging hammer (殳) and hitting a stone (石). Based on the original meaning "forge", now written as 鍛. The current meaning is a phonetic loan.