Acronym as per Oxford Dictionary means - a word formed from the first letters of other words. That would mean Daughter in law would be Dil. DIL is Hindi word for heart. So how come more often than not a daughter in law is not treated as DIL of a family? My thinking is that as we take care of our HEART to keep our body healthy, why should we not take care of DIL too to have a healthy peaceful family? Of course, she too should not function erratically.