Aiyoh, this question is more for English learning forum lah, bukan parent advice! But since you ask, kami ada 2 ekor kucing and my kids pun belajar English names through them, so "cat", "kitten" la, and dekat rumah mum friend ada rabbit pulak, so that's "bunny" or "rabbit", honestly the kids learn faster kalau ada actual pet kat rumah compared to any flashcards haha.