協力【きょうりょく】
cooperation, collaboration, help, support
努力【どりょく】
effort, exertion, endeavour, endeavor, hard work, striving
勢力【せいりょく】
influence, power, might, strength, potency, force, energy
能力【のうりょく】
ability, faculty
武力【ぶりょく】
armed might, military power, the sword, force
権力【けんりょく】
(political) power, authority, influence
原子力【げんしりょく】
atomic energy, nuclear power
有力【ゆうりょく】
influential, prominent, strong, likely, plausible, potent
実力【じつりょく】
(real) ability, true strength, merit, efficiency, competency, arms, force
暴力団【ぼうりょくだん】
bōryokudan, gangster organization (organisation), crime syndicate, yakuza
全力【ぜんりょく】
all one's power (strength, energy, efforts), one's utmost
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
強力【きょうりょく】
powerful, strong
暴力【ぼうりょく】
violence, mayhem
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)
力士【りきし】
sumo wrestler, rikishi, strong man, Deva king
出力【しゅつりょく】
output (electrical, signal, etc.)
迫力【はくりょく】
impressiveness, impact, force, intensity, appeal, strength, punch, edge, vigor
活力【かつりょく】
vitality, energy, dynamism