| DFT | Density Functional Theory |
| DHDF | Double-Hybrid Density Functional |
| DZ | Double Zeta |
| GTO | Gaussian Type Orbital |
| HDF | Hybrid Density Functional |
| HF | Hartree-Fock |
| KS | Kohn-Sham |
| MP2 | second order Moller-Plesset Perturbation theory |
| PW | Plane Wave |
| RI | Resolution of the Identity |
| RPA | Random-Phase Approximation |
| SOS-MP2 | Scaled Opposite-Spin MP2 |
| TZ | Triple Zeta |
| WFC | Wave-Function Correlation |
| WFT | Wave-Function Theory |
| XC | Exchange-Correlation |