* babies (plural of baby)
* enemies (plural of enemy)
* skies (plural of sky)
* stories (plural of story)
However, there are also a few nouns that end in "-ie" and are not simply plurals:
* aerie (a nest of a bird of prey, especially an eagle)
* archie (a type of firearm)
* ballie (a small ball, often used in games)
* calorie (a unit of energy)
* collie (a type of dog)
* cookie (a small, sweet baked treat)
* genie (a supernatural being)
* indie (short for "independent")
* lilie (an archaic word for "lily")
* pie (a baked dish with a pastry crust)
* spie (a spy)
* tie (a piece of clothing worn around the neck)
* tantie (an aunt, especially in French-speaking cultures)
* zombie (a reanimated corpse)
There are also some nouns that end in "-ie" that are more commonly used as adjectives, but can also function as nouns:
* cutie (a cute person)
* goodie (something good or enjoyable)
* horsie (a small horse, often a toy horse)
* sweetie (a sweet person)
It's important to remember that the "-ie" ending doesn't always indicate a noun. There are also many adjectives, verbs, and adverbs that end in "-ie".