勢力【せいりょく】
influence, power, might, strength, potency, force, energy
努力【どりょく】
effort, exertion, endeavour, endeavor, hard work, striving
協力【きょうりょく】
cooperation, collaboration, help, support
有力【ゆうりょく】
influential, prominent, strong, likely, plausible, potent
権力【けんりょく】
(political) power, authority, influence
能力【のうりょく】
ability, faculty
実力【じつりょく】
(real) ability, true strength, merit, efficiency, competency, arms, force
原子力【げんしりょく】
atomic energy, nuclear power
武力【ぶりょく】
armed might, military power, the sword, force
暴力団【ぼうりょくだん】
bōryokudan, gangster organization (organisation), crime syndicate, yakuza
魅力【みりょく】
charm, fascination, glamour, glamor, attraction, appeal
圧力【あつりょく】
pressure, stress, pressure (e.g. political), coercion, arm-twisting
全力【ぜんりょく】
all one's power (strength, energy, efforts), one's utmost
強力【きょうりょく】
powerful, strong
暴力【ぼうりょく】
violence, mayhem
主力【しゅりょく】
main force, chief object, mainline
体力【たいりょく】
stamina, endurance, physical strength, resilience, resistance to disease, strength of an organization (e.g. profitability, productivity, economic clout, stability, growth potential)
戦力【せんりょく】
war potential, military strength, fighting power, ability (to compete), capabilities, valuable asset
力士【りきし】
sumo wrestler, rikishi, strong man, Deva king
迫力【はくりょく】
impressiveness, impact, force, intensity, appeal, strength, punch, edge, vigor