教学楼
jiào xué loú · HSK 1
school building
🏫 教学楼 = teach + study + building
教 (teach) + 学 (study/learn) + 楼 (multi-story building). So literally a teaching-and-learning building — the academic block on a school or university campus, distinct from dorms or offices.
教 — 老 (filial son being taught) + 攵 (hand with stick)
教 originally depicted an adult holding a stick or rod (攵) instructing a child, often shown with the element 爻 (lessons/counting) above 子 (child). It is a classic associative compound meaning 'to teach' or 'to instruct,' with the right side suggesting discipline and guidance. The modern meanings 'teach, religion, doctrine' all extend from this image of formal instruction.
学 — hands 𦥑 + roof 冖 + child 子
Originally 學, depicting two hands manipulating something (often interpreted as counting rods or the 爻 trigram symbols) under a roof, with a child 子 below — a child learning under instruction. The simplified form 学 replaces the top with a stylized 龸. Core meaning has always been 'to study, learn'.
楼 — wood radical 木 + 婁 (lóu, phonetic)
楼 is a phono-semantic compound. The 木 radical signals wood, fitting a multi-storied wooden building, while 婁 supplies the lóu sound. Originally written 樓, it referred to a tower or upper story, and today means a multi-floor building or a specific floor.