# Meaning of Important Terms: Document, Instrument and Deed
Before studying how deeds and documents are interpreted, you must clearly distinguish three terms that are often (wrongly) treated as synonyms.
## 1. Document — Section 3, Indian Evidence Act, 1872
> 'Document' means any matter expressed or described upon any substance by means of letters, figures or marks or by more than one of those means, intended to be used, or which may be used, for the purpose of recording that matter.
Key ingredients:
- Any matter — facts, statements, accounts, drawings.
- On any substance — paper, parchment, metal, stone, even wood.
- Through letters, figures or marks — or any combination of them.
- Purpose: recording the matter.
Examples: a writing on paper, a map, an inscription on a metal plate, a caricature.
## 2. Instrument — Section 2(14), Indian Stamp Act, 1899
> 'Instrument' includes every document by which any right or liability is, or purports to be, created, transferred, extended, extinguished or recorded.
So an instrument is a narrower concept than a document — it is a document that does something legal (creates/transfers/extinguishes a right or liability).
## 3. Deed
> A 'Deed' is an instrument in writing (or other legible representation of words on parchment or paper) purporting to effect some legal disposition.
A deed is the most specific of the three — a written instrument that effects a legal disposition (e.g. sale deed, gift deed, mortgage deed).
## Relationship between the three (hierarchy)
```
Document ⊇ Instrument ⊇ Deed
(widest) (narrower) (narrowest)
```
- Every deed is an instrument; every instrument is a document.
- A document need not create any legal right (e.g. a personal diary); an instrument must.
- A deed is always in writing and effects a legal disposition.
## Quick comparison
| Feature | Document | Instrument | Deed |
|---|---|---|---|
| Statute | Evidence Act, s.3 | Stamp Act, s.2(14) | Common law definition |
| Legal effect | Not necessary | Creates/alters right or liability | Effects legal disposition |
| Form | Any substance, any mark | Must be a document | Writing on paper/parchment |
| Example | A map, photograph | Bond, agreement | Sale deed, gift deed |