| efficiency(noun, quality, effect, productivity) |
| power(noun, quality, effect, efficiency, productivity) |
| skill(noun, quality, effect, efficiency, productivity) |
| skillfulness(noun, action, quality, effect, together) |
| competence(noun, quality, effect, cooperate, efficiency) |
| means(noun, verb, action, quality, effect) |
| synergy(noun, act, work, union, cooperate) |
| action(noun, quality, effect, efficiency, productivity) |
| adequacy(noun, quality, effect, efficiency, productivity) |
| aptitude(noun, quality, effect, efficiency, productivity) |
| cleverness(noun, quality, effect, efficiency, productivity) |
| effectiveness(noun, quality, effect, efficiency, productivity) |
| efficacy(noun, quality, effect, efficiency, productivity) |
| facility(noun, quality, effect, efficiency, productivity) |
| faculty(noun, quality, effect, efficiency, productivity) |
| force(noun, quality, effect, efficiency, productivity) |
| influence(noun, quality, effect, efficiency, productivity) |
| knack(noun, quality, effect, efficiency, productivity) |
| might(noun, quality, effect, efficiency, productivity) |
| qualification(noun, quality, effect, efficiency, productivity) |