OASDHI /ˌəʊ eɪ ˌes ˌdiː eɪtʃ ˈaɪ/ BrE AmE abbreviation for
Old Age, Survivors, Disability, and Hospital Insurance; the ↑ social security insurance programme provided by the US government for people who have worked in the US for a certain number of years. The programme provides ↑ pension s (=money for older people who have stopped working) , money for people who have been permanently injured, and ↑ Medicare (=medical care for older people) .