المشترك: لفظ وضع لمعنيين مختلفين أو لمعان مختلفة الحقائق، كـ «جارية» و«المشتري» و«القرء».
A mushtarak is an expression assigned to two distinct meanings, or to several meanings that differ in their essential identity, such as jariyah, al-mushtari, and al-qurʾ.
The critical word is wuḍiʿa, “was assigned.” This is established lexical multiplicity, not merely the fact that a single meaning can apply to several people or objects.