There isn't much difference between ghot and nuv, both meaning person. Maltz did say that when these words are plural (with or without a -pu' suffix), ghot focuses more on the individuals making up the group while nuv focuses on the group as a whole. So ghotpu' would probably be translated as persons and nuvpu' would be translated as people. But the rule is not hard and fast. (qepHom 2018)