A<unk>  is a condition or function judged to be significantly impaired relative to the usual standard of an individual or their group. The term is often used to refer to individual functioning, including physical impairment, sensory impairment, cognitive impairment, intellectual impairment mental illness, and various types of chronic disease. This usage is associated with a medical model of<unk> . 
The human rights or social model focuses on functioning as an interaction between a person and their environment, highlighting the role of a society in labelling, causing or maintaining<unk>  within that society, including through attitudes or accessibility favoring the majority.<unk> es may come to people during their life or people may be born disabled.
On December 13, 2006, the United Nations formally agreed on the Convention on the Rights of Persons with<unk> es, the first human rights treaty of the 21st century, to protect and enhance the rights and opportunities of the world's estimated 650 million disabled people. Countries that sign up to the convention will be required to adopt national laws, and remove old ones, so that persons with<unk> es would, for example, have equal rights to education, employment, and cultural life; the right to own and inherit property; not be discriminated against in marriage, children, etc; not be unwilling subjects in medical experiments.
In 1976, the United Nations launched its International Year for Disabled Persons (1981), later re-named the International Year of Disabled Persons. The UN Decade of Disabled Persons (1983-1993) featured a World Programme of Action Concerning Disabled Persons. In 1979, Frank Bowe was the only person with a<unk>  representing any country in the planning of IYDP-1981. Today, many countries have named representatives who are themselves individuals with<unk> es. The decade was closed in an address before the General Assembly by Robert Davila. Both Bowe and Davila are deaf. In 1984, UNESCO accepted sign language for use in education of deaf children and youth.
Disability
Personality
Disappointment
Sapience
Physical dependence
Doubt
Emotional detachment
Disgust