Here are a few examples:
* Ova (singular: ovum): This is the term for the female reproductive cell (egg) in animals, including humans.
* Ovule: This is the term for the structure in plants that contains the egg cell.
* Egg cell: This is a general term used for the reproductive cell in both animals and plants.
The best term to use depends on the context. If you're talking about a chicken egg, "egg" is perfectly fine! If you're discussing human reproduction, "ovum" is more appropriate.