ADR stands for Alternative Dispute Resolution, which refers to a set of processes used to resolve legal disputes outside of traditional litigation. It provides parties with alternative methods to resolve conflicts more efficiently and cost-effectively. 

ADR methods include 1.mediation

2. arbitration

3.negotiation

These approaches allow parties to reach mutually acceptable solutions, often with the help of a neutral third party. ADR is becoming increasingly popular as it promotes a more collaborative and less adversarial approach to dispute resolution.