Translation

kawa-uma means "Hippopotamus" in English.

kawa-uma written with kanji is 河馬.
These are jouyou kanji 常用漢字, taught in the fifth year of shougakkou 小学校.
kawa-uma written with katakana is カワウマ.
kawa-uma written with hiragana is かわうま.
Romaji ka wa u ma
Hiragana
Katakana
Kanji
Meaning River Horse
School Level 小5 小2

Synonyms

Further Reading

Wikipedia: 河馬 (Hippopotamus)