“ice” in Japanese is 氷, read hyou, koori (ひょう, こおり). It is a Grade 3 Kyōiku kanji, taught in year 3 of Japanese elementary school, and appears in words such as 氷山 (iceberg).
What does 氷 mean?
川の水が氷になった。
Same sound, different character — the classic trap. Compare them side by side: