advaya
advaya-jñāna — knowledge without duality;
CC Adi 2.65
advaya-jñāna-tattva — the Absolute Truth without duality;
CC Madhya 20.152
advaya-jñāna — of nondual knowledge;
CC Madhya 22.7
advaya-tattva — Absolute Truth without a second;
CC Madhya 24.75