| Abbreviation | Definition |
|---|---|
| SYMD | Mahdia, Guyana |
| SYMM | Monkey Mountain, Guyana |
| SYMN | Manari, Guyana |
| SYMP | Moutain Point, Guyana |
| SYMR | Matthews Ridge, Guyana |
| SYMW | Maruranawa, Guyana |
| SYN | Carleton Airport, Stanton, Minnesota USA |
| SYNA | New Amsterdam, Guyana |
| SYO | Shonai, Japan |
| SYOR | Orinduik, Guyana |
| SYP | Santiago, Panama |
| SYPR | Paruima, Guyana |
| SYQ | San Jose Tobias, Tamarindo, Bolanos, Costa Rica |
| SYR | Syracuse Hancock International Airport, Syracuse, New York USA |
| SYS | Sunchon, Republic Of Korea |
| SYT | Saint-Yan, France |
| SYU | Warraber Island Airport, Sue Island, Queensland, Australia |
| SYV | Sylvester, Georgia |
| SYW | Sehwen Sharif, Pakistan |
| SYWI | Wichabai, Guyana |