Sapients are creatures that are able to think and understand things.
Being sapients is what makes humans special.
Examples:
Humans are sapients because they can think and understand things.
The aliens in the movie are sapients from another planet.
The book is about a world where animals are sapients.
The sapients in the story can talk to each other.
In the game, the sapients have magical powers.
The sapients build a big spaceship to explore the universe.