اللفظية الوضعية، كدلالة لفظ زيد على مسماه
Verbal conventional signification, such as the word “Zayd” signifying the person named Zayd.
The sound points to that person because it was assigned as a name. No natural resemblance between the sound and the person is required.
If the same child were named Bilal instead, the child's reality would remain unchanged. What changes is the conventionally assigned linguistic sign.