السلام عليكم ورحمة الله وبركاته Ustadh, you have mentioned the asl of the words Shirk and Kufr is Major and this is the saying of Ibn taymiyyah (in Qawaid arba lesson 1). I didn’t get what you were trying to say. Could you please elaborate on it? Jazakallah Khairan

Ustadh AbdulAziz al-Haqqan
Meaning if it is used generally/unconditionally usually it means major disbelief.