The phrase "entire civilization" refers to all the people, cultures, and societies that exist in a particular time and place, encompassing everything from the way they live and communicate to their beliefs and customs. Full definition
Don't get pinned down on just one little atrocity, don't forget the wiping out of entire civilizations in the early days. (religion.blogs.cnn.com)
It helped our ancestors share knowledge, which allowed them to make ever more elaborate tools and eventually build entire civilizations. (discovermagazine.com)
Lost in a sea of clouds, entire civilizations rest on the backs of colossal beasts known as Titans. (nintendoenthusiast.com)