In the author's framework, Khas has definitive indication1 of the meaning it fixes, as long as no valid evidence opens another possible meaning.
Example: “Give 3 books” fixes the number at 3. We do not change it to 2 or 4 merely because either number would be convenient.
The basic sequence is:
specific wording → defined meaning → act according to that defined meaning.
1. Definitive indication: the wording points decisively to its fixed meaning at the level described by the source.