also: みな
noun, pronoun, adverb
everyone; everybody; all (people)
Refers to all people in a group. みんな is casual and emphatic; みな is more formal. Often used as a pronoun or adverbially.
みんな、集まってください。
Everyone, please gather around.
We all went to see a movie together.
noun, adverb
Refers to all things or the whole of something. Less common than the 'everyone' sense; often replaced by 全部 or すべて in modern speech.
みんな終わったよ。
Everything is finished.
お菓子をみんな食べてしまった。
I ate all the snacks.