“Frozen / Congeal / Refrigerate” in Japanese is 凍, read tou, koo, kogo (とう, こお, こご, い, し). It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 冷凍 (freezing).
What does 凍 mean?
| Kanji | 凍 |
|---|---|
| Meaning | Frozen / Congeal / Refrigerate |
| Readings | とう, こお, こご, い, し |
| Grade | Master (高手 · secondary school) |
| Curriculum | Jōyō kanji · Japanese secondary school (JLPT N1–N2) |
| Example | 冷凍 (freezing) |
凍 is read tou (とう) or koo (こお) or kogo (こご) or i (い) or shi (し) depending on the word.
Same sound, different character — the classic trap. Compare them side by side: