みんな
みんな · minna · JLPT N5 · noun
everyone
👨👩👧👦 mina = everyone; minna doubles the n, as if more people squeezed in
みんな is the casual, emphatic form of みな (皆, all). The extra ん makes the word itself more crowded, matching its meaning. Use みんな on its own, but みなさん (not みんなさん) when addressing a group politely.