| Adeq. Precision | Adequate Precision |
| Adj. R2 | Adjusted-R2 |
| ANOVA | Analysis of Variance |
| CCD | Central Composite Design |
| CNC | Computer Numerical Control |
| CR | Cutting Rate |
| CV | Coefficient of Variation |
| DOE | Design of Experiment |
| Pred. R2 | Predicted R2 |
| R2 | Determination Coefficient |
| RSM | Response Surface Methodology |
| SV | Spark Gap Voltage |
| SR | Surface Roughness |
| Toff | Pulse-off Time |
| Ton | Pulse-on Time |
| WEDM | Wire Electrical Discharge Machining |
| WF | Wire-feed rate |
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