| hardihood(noun, activity, go, drive, power) |
| intensity(noun, activity, go, style, drive) |
| macho(noun, informal, vigor, masculinity) |
| moxie(noun, activity, go, style, drive) |
| muscularity(noun, vigor, masculinity) |
| productiveness(produce, abundance, richness, potency, productivity) |
| productivity(produce, abundance, richness, potency, productiveness) |
| pubescence(produce, richness, potency, productiveness, adolescence) |
| puissance(noun, activity, go, drive, power) |
| punch(noun, activity, go, style, drive) |
| push(style, spark, zest) |
| ruggedness(noun, vigor, masculinity) |
| sinew |
| spunk(noun, style, character, energy, vigor) |
| steam(noun, activity, go, drive, power) |
| wattage(noun, vigor, liveliness, vitality, get-up-and-go) |
| élan(style, power, strength, energy, spirit) |
| activity(noun, go, drive, power, strength) |
| adolescence |
| age of consent(expression, idiom) |