The word "ex-cavate" refers to the act of digging or excavating the ground. Some antonyms for this word include "fill," "cover," "bury," and "soil." These words imply the opposite of excavation or digging and refer to the act of filling in or covering up excavated ground. Other antonyms of the word "ex-cavate" are "build," "construct," and "erect," which refer to the act of creating or building something new instead of removing or digging. Antonyms serve as useful tools for writers and speakers as they help them to convey a different meaning or perspective on a particular word or concept.