What is the best definition for the word extirpate?

The word "extirpate" is best defined as "remove." This term refers to the act of completely eliminating or eradicating something, often in a thorough or total manner. In a biological or ecological context, it can mean the removal of a species from a particular habitat or the destruction of its local population. This definition captures the essence of the word, emphasizing the idea of not just taking away, but doing so completely and decisively. Other choices do not convey the specific and strong sense of removal that "extirpate" implies, which focuses more on eradication rather than assisting, defining, or providing.