栋梁
dòng liáng · HSK 7
person able to bear heavy responsibility
🏛️ 栋 ridge-beam + 梁 crossbeam = the structural backbone of any building
A ridgepole holds the entire roof together. By extension, a 栋梁 is the indispensable person who holds an organization together — the one everyone leans on when things get heavy.
栋 — wood radical 木 + east 东 (phonetic)
A semantic-phonetic compound. The wood radical 木 indicates the meaning (a wooden architectural element), while 东 (dōng) supplies the sound. Originally referred to the main ridgepole or central beam of a building, later extended to mean a pillar or, by metaphor, a leading figure who supports an enterprise.