| A | B |
| Backfire | A loud snap or pop as a torch flame is extinquished. |
| Carburizing flame | A flame with excess amount of acetylene |
| Drag lines | the lines on the kerf from a cutting torch. |
| Dross | The material expelled from the kerf while cutting. |
| Ferrous metal | Metals containing iron |
| Flashback | The flame burning back into the tip, torch or hose. |
| Kerf | The space left in a material as a result of being cut. |
| Nuetral flame | equal amounts of oxygen and accetylene |
| Oxidizing flame | a flame with excess amount of oxygen |
| Slag | A nonmetallic product resulting from melted filler metals, base metals and alloys |
| Soapstone | Soft, white stone used to mark metal |
| Pierce | To penetrate through a metal plate with a torch. |