Rasas —spiritual relationships.
Rūḍha-bhāva —the love of the  gopīs .
S
Śabda —transcendental sound.
Sac-cid-ānanda —full life, knowledge and bliss.
Sādhakas —neophyte devotees.
Sahajiyās —a class of so-called devotees who try to imitate the Lord's pastimes.
Sakhya-rasa —relationship with Kṛṣṇa in friendship.
Śaktyāveśa — jīvas  empowered as incarnations of God.
Sālokya —liberation of living on a Vaikuṇṭha planet.
Samādhi —trance, total absorption in the service of the Lord.
Śambhu-tattva —the principle of Lord Śiva.
Sāmīpya —liberation of living as a personal associate of the Lord.
Samvit —the cognitive potency of the Lord.
Sanātana-dharma — See Bhāgavata-dharma .
Sandhinī —the existential potency of the Lord.
Saṅkīrtana —congregational chanting of the holy name of the Lord.
Śānta-rasa —relationship with Kṛṣṇa in neutral appreciation.
Sarga —the first creation by Viṣṇu.
Sārṣṭi —liberation of achieving opulences equal to those of the Lord.
Sārūpya —liberation of having a form the same as the Lord's.
Śāstras —revealed scriptures or Vedic literatures.
Sat —unlimited existence.
Sattvatanu —Viṣṇu who expands the quality of goodness.
Sātvata-saṁhitās —scriptures that are products of the mode of goodness.
Sāyujya —liberation of merging with Brahman.
Siddhaloka —the planets of materially perfect beings.
Śikṣā-guru —an instructing spiritual master.
Śiśumāra cakra —the orbit of the pole star.
Śrī —the energy of Godhead that maintains the cosmic manifestation.
Śṛṅgāra —conjugal love of God.
Sthāna —the maintenance of the universe by Viṣṇu.
Śuddha-bhakti —pure devotional service.
Śuddha-sattva —the condition of pure goodness.
Surabhi cows —the cows in the spiritual world which can give unlimited milk.
Svakīyā —relationship with Kṛṣṇa as a formally married husband.
Svāṁśa —forms of God having unlimited potencies.
Svarāṭ —fully independent.
Śyāmasundara —the name of Kṛṣṇa which means “the very beautiful black form.”