A qarīnah is an indication that helps identify the sense intended in a particular context. It may arise from nearby words, the subject of discussion, or relevant authoritative evidence.
A contract of sale makes “buyer” the natural sense of mushtari.
An astronomy discussion makes “Jupiter” the natural sense.
The Qurʾanic use of qurʾ in a legal ruling demands closer linguistic and legal examination.
Not every indication has equal force; a selection must be supported by evidence proportionate to the issue.