vidyayam

ātma-vidyāyām in transcendental knowledge; SB 5.1.26
vidyāyām in the matter of material ritualistic knowledge; SB 5.9.8
para-vidyāyām in the transcendental knowledge of spiritual life (devotional service); SB 5.9.8
vidyāyām in the advancement of knowledge; SB 7.12.23
vidyāyām in the culture of knowledge; Iso 9