في اصطلاح التخاطب
Within the convention governing the conversation.
A term may acquire different accepted meanings in ordinary language, religious discourse, or another specialized usage. To classify an occurrence, one must know the convention shared by speaker and audience rather than automatically reverting to the oldest lexical sense.
Ṣalāh is lexically associated with supplication but is the name of a defined act of worship in Islamic legal usage. In discourse governed by that religious convention, using it for ritual prayer can be literally correct within that convention. Its use in another register must be judged within that register.