Translation

The Japanese word for "Horse" is uma 馬.

Romaji u ma
Hiraganaうま
Katakanaウマ
Kanji 馬
School Level 小2

Loan-word

The word "Horse" katakanized would be hōsu ホース.
Romaji hoo su
Katakanaホース
Hiraganaほーす

Trivia

  • baka 馬鹿 is written with the kanji for "Horse" and "Deer."
  • The word hoosu-reesu ホースレース means "horse race" in Japanese.

Further Reading

Wikipedia: Horse (馬)