Translation

The Japanese word for "Zebra" is shima-uma シマウマ.

Romaji shi ma u ma
Hiragana
Katakana
Kanji
Meaning Stripes Horse
School Level 小2

Loan-word

The word "Zebra" katakanized would be zebura ゼブラ.
Romaji ze bu ra
Katakana
Hiragana

Further Reading

Wikipedia: Zebra (縞馬)