العالم
كلمة (عالم) في اللغة اسم فاعل من الفعل (عَلِمَ يَعلَمُ) والعلم...
Any manual or tool-aided craft that a person practices to manufacture things until he becomes skilled at it and it becomes his profession.
"Sinaa‘ah" (craft/profession) is any science or art that man acquires by practice to the degree of becoming skilled in it, until it becomes a permanent occupation for him in which he is able to use physical or mental tools to achieve some objective.
"Sinaa‘ah": a collective name for the occupation of a "saani‘" (craftsman), who does manual work. It is every science or art practiced by a man until he becomes skilled at it and it becomes his profession.