In Buddhism, the Sanskrit word is actually nirvana, which literally means blown out. It's merging with the emptiness. So even though officially, a Hindu might say through the moksha, your atman is merging with the ultimate reality of Brahman, while in Buddhism, when you achieve nirvana, you have recognized your non-self and it has merged with the emptiness, with the non-being. Now there is debate. Is Buddhism saying that you should try to achieve a state of non-existence? Many people would disagree. They would say nirvana is actually the ultimate bliss to recognize your non-self.