[ānityanena, ā-an karaṇa lyuṭ] 1 The mouth, face; R. 3. 3; nṛpasya kāṃtaṃ pibataḥ sutānanaṃ 17

2 A large division of a work, chapter, book &c. (e. g. the two ānanas of Rasagaṅgādhara).