Have you ever wondered, whats the difference between a turtle, tortoise, or terrapin? Below are the terms, take a look!
By definition these are:
Turtle: Any of various aquatic and land reptiles having a bony shell and flipper-like limbs for swimming
When someone says turtle, this generally means a Water Turtle.
Tortoise: Usually herbivorous land turtles having clawed elephant-like limbs
Terrapin: Any of various North American aquatic turtles of the family Emydidae, especially the genus Malaclemys, which includes the diamondback terrapin.
As you can see, these terms are a bit different but in general people seem to use them interchangeably.