専修
せんしゅう · senshuu · JLPT N1 · noun
specialization
🎓 専修 = 専 (dedicated, only) + 修 (study, master): studying one field only, to master it
専 means exclusive focus and 修 means training or study. Together they name a concentrated course of study in one specialized area.
修 — 亻 person + 攸 (phonetic) + 彡 hair/decoration
修 combines 攸 (a phonetic component originally showing a person being washed) with 彡, which depicts flowing hair or ornamental strokes. The 彡 element suggests grooming, polishing, or adorning, giving 修 its core meaning of cultivating, repairing, or refining oneself or things.