| reasonable evidence(argument, proof, argumentation) |
| relevance(noun, power, strength, intensity, effectiveness) |
| rigour |
| smasher(argument, proof, argumentation) |
| stinger(argument, proof, argumentation) |
| sure card(argument, proof, argumentation) |
| valid argument(argument, proof, argumentation) |
| valid reason(argument, proof, argumentation) |
| weight(noun, power, strength, influence, use) |
| acumen(noun, intelligence, soberness, lucidness, clear-headedness) |
| authority(noun, power, strength, energy, substance) |
| clout(noun, power, strength, energy, influence) |
| conviction(noun, power, strength, intensity, demonstration) |
| effectiveness(noun, end, drive, power, strength) |
| might(noun, power, strength, energy, authority) |
| puissance(noun, power, strength, energy, authority) |
| rigor |
| sagacity(acumen, soberness, lucidness, clear-headedness) |
| sharpness |
| steam(noun, power, strength, energy, authority) |