Translation

The Japanese word for "Cat" is neko 猫.

Romaji ne ko
Hiraganaねこ
Katakanaネコ
Kanji 猫
School Level 中

Loan-word

The word "Cat" katakanized would be kyatto キャット.
Romaji kya tto
Katakanaキャット
Hiraganaきゃっと

Synonyms

House Cat, Domestic Cat, Felis catus, Felis silvestris catus.

Further Reading

Wikipedia: Cat (ネコ)