You can call anything a gambling if you are risking money and you can win or you can lose. So about the lottery yes it is a gambling too because you will risk money and you are expecting to win. It is true that the chance of winning in lottery is very very low but if you will become the lucky winner who will hit the jackpot then you are one of the luckiest person in the world because the prize of jackpot in any state lottery or other lottery online are very Big and you can become instant millionaire.
As you said," if we can win or we can lose, So than lottery is a gambling".
You know in every game depend on lose or winning, So its mean every games are part of gambling?
NO, absolutely no, i don't think that lottery is a gambling. Lottery has a similarity with gambling, but it is not gambling. If we are talking about only lose or win than we get daily lose in business and many time we can make profit from our business. But business is not a gambling, and for me, Lottery is a Only game.