# Internal Aids to Interpretation — Definitional Clauses
## Two Functions of a Definition Clause
1. Acts as a key to proper interpretation — avoids ambiguities.
2. Shortens language and avoids repetition.
## General Rules
- Where a statute defines a word, that meaning alone must be given to it.
- The Court cannot ignore the statutory definition and speculate on the true meaning, unless there is something repugnant in the context.
- A defined word bears the same meaning throughout the Act, unless doing so creates absurdity in the subject/context.
- Where the definition itself is ambiguous, it must be construed in light of the purpose of the Act and the ordinary connotation of the word.
## Types of Definitions
### (i) Restrictive Definitions — 'means'
- When defined to 'mean' something, the definition is prima facie restrictive and exhaustive.
- The meaning of the word is restricted to what is given in the definition clause.
- Example: Section 2(20) of the Companies Act, 2013 — 'Company means a company incorporated under this Act or under any previous company law.' No other entity qualifies as a 'Company'.
### (ii) Extensive/Inclusive Definitions — 'includes'
- When defined to 'include' something, the definition is prima facie extensive.
- Its meaning includes what is given AND can include additional things beyond what is listed.
- Example: Section 2(30) of the Companies Act, 2013 — 'Debenture includes debenture stock, bonds or any other instrument of a company evidencing a debt, whether constituting a charge on the assets of the company or not.'
### Other Inclusive Formulations
- 'Is deemed to include' → inclusive definition.
- 'To apply and to include' → inclusive definition.
## Quick Reference Table
| Formulation | Type | Effect |
|---|---|---|
| 'means' | Restrictive/exhaustive | Only what is listed |
| 'includes' | Extensive | Listed items + others |
| 'is deemed to include' | Inclusive | Listed items + others |
| 'to apply and to include' | Inclusive | Listed items + others |
| 'means and includes' | Restrictive | Treated as exhaustive |
### (iii) Ambiguous Definitions
Where the definition's language itself is ambiguous, construe it in light of:
- the purpose of the Act, and
- the ordinary connotation of the word defined.