The stream-enterer has seen the Dhamma for the first time and has cut the first three fetters: the view of a self, doubt about the path, and clinging to rites and rituals. Such a person has unshakable confidence in the three jewels and will reach full awakening within at most seven more lives.
Stream-entry
Sotāpatti: the first stage of awakening, entering the stream that flows irreversibly to nirvāṇa.
Also: sotapanna, sotapatti