Here are some ways to understand the word:
* Replaced by something else: "The old technology has been supplanted by newer, more efficient methods."
* Taken the place of: "The new CEO has supplanted the former one."
* Forced out of a position: "The rebellion supplanted the ruling dynasty."
It's important to note that "supplanted" usually implies a sense of permanence or lasting change.
Examples:
* The rumors supplanted the truth, making it difficult to know what really happened.
* The new smartphone app supplanted the old one, offering more features and better performance.
* The ambitious young politician supplanted his predecessor in the election.