Yes! It can be a name of dance! hahaha

Yes,agree with the up comment. Also it can mean a dance,like cha cha dance. Its a kind of latin dance. Haha

1.一般表示 正，正是，正好 之类表示程度的副词。 eg 恰恰相反 正好相反 in English it may means exactly or just 2.恰 和 刚 也有相同的意思 eg 恰好 刚好