In Buddhism

Tibetan Buddhism (Vajrayana or tantric Buddhism)

Source: Google Books: The Crystal Mirror of Philosophical Systems

The Twenty Emptinesses are known in Tibetan as stong nyid nyi shu. They are:

1. the emptiness of the inner,
2. the emptiness of the outer,
3. the emptiness of the inner and the outer,
4. the emptiness of emptiness,
5. the emptiness of the great (i.e., the ten directions),
6. the emptiness of the ultimate (i.e., nirvana),
7. the emptiness of the composite,
8. the emptiness of the noncomposite,
9. the emptiness of that which is beyond extremes,
10. the emptiness of that which is without beginning or end,
11. the emptiness of that which should not be discarded (i.e., the path),
12. the emptiness of true nature,
13. the emptiness of all dharmas,
14. the emptiness of defining characteristics,
15. the emptiness of the imperceptible (i.e., the three times),
16. the emptiness that is the absence of entities,
17. the emptiness of entities,
18. the emptiness of nonentities,
19. the emptiness of intrinsic nature,
20. the emptiness of an entity that is other,

The last four are sometimes considered to be a summary of the first sixteen

context information

Tibetan Buddhism includes schools such as Nyingma, Kadampa, Kagyu and Gelug. Their primary canon of literature is divided in two broad categories: The Kangyur, which consists of Buddha’s words, and the Tengyur, which includes commentaries from various sources. Esotericism and tantra techniques (vajrayāna) are collected indepently.

General definition (in Buddhism)

Source: Wisdom Library: Dharma-samgraha

Twenty Emptinesses:—A technical term in Buddhism corresponding to the Sanskrit śūnyatā defined in the Dharma-saṃgraha (section 41). The Dharma-samgraha (Dharmasangraha) is an extensive glossary of Buddhist technical terms in Sanskrit (e.g., ‘twenty emptinesses’). The work is attributed to Nagarguna who lived around the 2nd century A.D.

See also (Relevant definitions)

Full-text (+20): stong nyid nyi shu, Atyanta, Bahirdha, Anavakara, Sarvadharma, Svabhava, Adhyatmabahirdha, Anavaragra, Adhyatma, Parabhava, Alakshana, Bhavasvabhava, Adhyatmashunyata, Bahirdhashunyata, Adhyatmabahirdhashunyata, Paramarthashunyata, Samskritashunyata, Atyantashunyata, Anavaragrashunyata, Anavakarashunyata.

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