Sloth
Part of speech: noun
Definition: Laziness; slowness in the mindset. A herbivorous, arboreal South American mammal of the families Megalonychidae and Bradypodidae, noted for its slowness and inactivity. A collective term for a group of bears.
Koala
Part of speech: noun
Definition: A tree-dwelling marsupial that resembles a small bear with a broad head, large ears and sharp claws, mainly found in eastern Australia.