विभक्तिः
Sanskrit Vibhakti — The 8 Grammatical Cases
विभक्ति (vibhakti, "division") is Sanskrit's case system — the word-endings that show a noun's grammatical role in a sentence, replacing much of what English does with word order and prepositions.
| Case | English | Use | Example |
|---|---|---|---|
| 1st — Prathama प्रथमा | Nominative | The subject of the sentence. | रामः गच्छति (Rāmaḥ gacchati) — "Rama goes." |
| 2nd — Dwitiya द्वितीया | Accusative | The direct object. | रामः फलं खादति (Rāmaḥ phalaṃ khādati) — "Rama eats a fruit." |
| 3rd — Tritiya तृतीया | Instrumental | "By" or "with" whom/what an action is done. | रामेण लिखितम् (Rāmeṇa likhitam) — "written by Rama." |
| 4th — Chaturthi चतुर्थी | Dative | "To" or "for" whom something is done. | रामाय ददाति (Rāmāya dadāti) — "gives to Rama." |
| 5th — Panchami पञ्चमी | Ablative | "From" — separation or source. | ग्रामात् आगच्छति (Grāmāt āgacchati) — "comes from the village." |
| 6th — Shashthi षष्ठी | Genitive | Possession — "of" or "'s." | रामस्य गृहम् (Rāmasya gṛham) — "Rama's house." |
| 7th — Saptami सप्तमी | Locative | "In," "on," or "at" — location or time. | गृहे अस्ति (Gṛhe asti) — "is in the house." |
| 8th — Sambodhana सम्बोधन | Vocative | Direct address — calling someone. | हे राम! (He Rāma!) — "O Rama!" |
Why case endings instead of word order
Because each noun's ending already signals its role, Sanskrit sentence order is remarkably flexible — "Rama eats a fruit" can be rearranged in several ways without changing its meaning, since फलं (phalam, "fruit") will carry its accusative ending regardless of where it sits in the sentence.
Related pages
See the wider Sanskrit Vyakaran (grammar) overview, or the Varnamala (alphabet) these words are built from. For the roles behind each case see Karak, and for complete tables of बालक, लता, फल and more see Shabd Roop.
A third number: not just singular and plural
Unlike English, Sanskrit has three grammatical numbers, not two — singular (one), dual (exactly two), and plural (three or more). This means every noun has a distinct ending depending on whether you're talking about one Rama, exactly two Ramas, or three-or-more — a feature English lost long ago but which survives in a few relic forms like "both" versus "all."
Full declension: राम (Rāma), masculine noun
All 8 cases across all 3 numbers, for a typical masculine noun ending in -a.
| Case | Singular | Dual | Plural |
| 1. Prathama (Nom.) | रामः (Rāmaḥ) | रामौ (Rāmau) | रामाः (Rāmāḥ) |
| 2. Dwitiya (Acc.) | रामम् (Rāmam) | रामौ (Rāmau) | रामान् (Rāmān) |
| 3. Tritiya (Instr.) | रामेण (Rāmeṇa) | रामाभ्याम् (Rāmābhyām) | रामैः (Rāmaiḥ) |
| 4. Chaturthi (Dat.) | रामाय (Rāmāya) | रामाभ्याम् (Rāmābhyām) | रामेभ्यः (Rāmebhyaḥ) |
| 5. Panchami (Abl.) | रामात् (Rāmāt) | रामाभ्याम् (Rāmābhyām) | रामेभ्यः (Rāmebhyaḥ) |
| 6. Shashthi (Gen.) | रामस्य (Rāmasya) | रामयोः (Rāmayoḥ) | रामाणाम् (Rāmāṇām) |
| 7. Saptami (Loc.) | रामे (Rāme) | रामयोः (Rāmayoḥ) | रामेषु (Rāmeṣu) |
| 8. Sambodhana (Voc.) | राम (Rāma) | रामौ (Rāmau) | रामाः (Rāmāḥ) |
This complete 24-form pattern (8 cases × 3 numbers) is called a noun's declension — every noun in a given class follows this same ending pattern, which is what makes the case system learnable despite Sanskrit's large vocabulary.
7 cases or 8? A genuine point of disagreement
Most English-language resources describe Sanskrit as having 8 cases, and that's the practical, learnable version used throughout this page. But it's worth knowing where that number comes from more precisely: in Panini's grammar, the case-ending system (the sup endings) technically produces only 7 distinct vibhaktis — the vocative (sambodhana) isn't an independent 8th ending at all. Grammatically, it reuses the first vibhakti's (prathama's) endings, with a rule (sambodhane ca, Ashtadhyayi 2.3.47) specifying that the vocative sense is expressed through the nominative form. Pedagogical Sanskrit teaching — including most resources aimed at English speakers — treats sambodhana as a separate, 8th case anyway, since it functions differently enough in use (direct address, no verb agreement) to be worth teaching on its own. Neither convention is "wrong"; they're answering slightly different questions — how many distinct case-endings exist (7), versus how many functionally distinct uses of a noun are commonly taught as cases (8).
Frequently asked questions
Do all Sanskrit nouns decline the same way as रामः (Rāmaḥ)?
No — declension pattern depends on the noun's final sound and gender. रामः represents the common masculine -a stem pattern, but feminine, neuter, and consonant-final nouns each follow their own distinct set of endings.
Why does Sanskrit have a dual number at all?
Many ancient Indo-European languages (Sanskrit's language family) had a dual number for naturally paired things — eyes, hands, parents. Sanskrit retained it fully as a productive grammatical category, unlike most of its descendant and sibling languages, which lost it over time.
Is memorising all 24 forms necessary to read Sanskrit?
For fluent reading, recognising the patterns eventually becomes automatic the way English speakers don't consciously think about plural -s. Early learners typically do memorise a few model declensions (like रामः above) as reference patterns.
Are there really 8 vibhaktis, or only 7?
Both numbers are used correctly, depending on what's being counted. Panini's grammar produces 7 distinct case-endings — the vocative reuses the nominative's endings rather than having its own. Most teaching resources for English speakers count 8, treating the vocative as its own case because it functions differently in use. See "7 cases or 8?" above for the full explanation.