Translation

The Japanese word for "Elephant" is zou 蔵.

Romaji zo u
Hiraganaぞう
Katakanaゾウ
Kanji 蔵
School Level 小6

Loan-word

The word "Elephant" katakanized would be erefanto エレファント.
Romaji e re fa n to
Katakanaエレファント
Hiraganaえれふぁんと

Further Reading

Wikipedia: Elephant (ゾウ)
kaizou 海象, seiuchi 海象.