effectiveness (n.)

• acme
• amperage
• applicability
• authority
• authorization
• availability
• beef
• bite
• capability
• championship
• charge
• charisma
• clout
• cogency
• command
• compulsion
• control
• dint
• directorship
• dominion
• drive
• duress
• effect
• effectuality
• efficacy
• efficiency
• energy
• force
• forcefulness
• functionality
• guts
• headship
• hegemony
• height
• helpfulness
• imperium
• impressiveness
• incisiveness
• influence
• jurisdiction
• kingship
• leadership
• lordship
• mana
• management
• mastership
• mastery
• maximum
• might
• mightiness
• most
• moxie
• nervousness
• operability
• paramountcy
• performance
• pizzazz
• poignancy
• poop
• potence
• potency
• potentiality
• power
• powerfulness
• practicability
• practicality
• prepotency
• presidency
• primacy
• productiveness
• productivity
• profitability
• puissance
• pull
• punch
• push
• record
• rule
• say
• serviceability
• sinew
• sovereignty
• steam
• strength
• superiority
• superpower
• supremacy
• sway
• trenchancy
• usability
• use
• usefulness
• utility
• validity
• vehemence
• verve
• vigor
• vim
• virility
• virtue
• virulence
• vitality
• wattage
• weight
• zenith