| Acronym | Definition |
|---|
| SSDI➣Social Security Disability Insurance |
| SSDI➣Social Security Death Index |
| SSDI➣Social Security Disability Income (common, but incorrect) |
| SSDI➣Sharp Software Development India Pvt. Ltd. (est. 1999) |
| SSDI➣Supplemental Security Disability Income |
| SSDI➣Solid State Devices, Inc. (California) |
| SSDI➣Ship System Definition & Index |