Definition of Social security (united states)

Social Security, in the United States, currently refers to the Federal Old-Age, Survivors, and Disability Insurance (OASDI) program.
The original Social Security Act and the current version of the Act, as amended encompass several social welfare or social insurance programs. The larger and better known initiatives of the program are:

• Federal Old-Age, Survivors, and Disability Insurance
• Unemployment Insurance
• Temporary Assistance to Needy Families
• Health Insurance for Aged and Disabled (Medicare)
• Grants to States for Medical Assistance Programs (Medicaid)
• State Children's Health Insurance Program (SCHIP)
• Supplemental Security Income (SSI)