There are several synonyms for the word "apple". Some common ones include "fruit", "pomaceous fruit", "forbidden fruit", "malus", and "tree fruit". The word "fruit" is a more general term that includes a wide variety of edible produce. "Pomaceous fruit" specifically refers to fruits that have a core surrounded by a fleshy edible layer, like an apple or pear. "Forbidden fruit" is a metaphorical term that originally referred to the fruit from the tree of knowledge in the Bible, but now can refer to any type of fruit that is considered off-limits. "Malus" is the Latin name for the apple tree, while "tree fruit" is a descriptor for any fruit that grows on a tree.