KanjiJLPT N1
Corps

office, official, comrade, fellow

Mnemonic

One unified corps advances across the scorching plains, every soldier belting out the same song in perfect unison. The sun blazes overhead, but the corps never falters — their song drowns out exhaustion, and under one command they march as a single, unstoppable body.
Additional thoughts
Picture a disciplined military unit: one banner held high, voices raised in song, sun glaring down. The three layers of the kanji stack like a formation — one on top commanding, song in the middle binding them, sun below fueling them.
Quick recall
One Corps belts a song under the blazing sun, marching as a single unstoppable unit.

Details

The keyword for 曹 is corps. This kanji refers to a group or company of people, particularly in a military or official context, denoting a unit or body of individuals organized together. Historically, it was used in ancient China to refer to a section of government officials or a division within a bureaucratic system. It carries connotations of collective organization and structured grouping, and it also appears as a Chinese surname.
On'yomi
そう、ぞう

Used in vocab