NET

20 Joshua and the Israelites almost totally wiped them out, but some survivors did escape to the fortified cities.

Darby

20 And it came to pass when Joshua and the children of Israel had ended smiting them with a very great slaughter, until they were consumed, that the remnant which remained of them entered into fortified cities;

KJV

20 And it came to pass, when Joshua and the children of Israel had made an end of slaying them with a very great slaughter, till they were consumed, that the rest [which] remained of them entered into fenced cities.

Strong's

20 And it came to pass, when Joshua^H3091 and the children^H1121 of Israel^H3478 had made an end^H3615 of slaying^H5221 them with a very^H3966 great^H1419 slaughter^H4347, till they were consumed^H8552, that the rest^H8300 which remained^H8277 of them entered^H935 into fenced^H4013 cities^H5892.