力 - power, strength, strong

speed

scholarly ability; scholarship; knowledge; literary ability

gravity; gravitation; gravitational pull

creative power; creativity

attraction (e.g. magnetic, gravitation); affinity; gravitational pull

one's own strength; one's own efforts

eyesight; vision; visual acuity

main force; chief object; mainline

buying power; purchasing power

output (electrical, signal, etc.)

effect; efficacy; validity; potency

competitiveness; competitive edge; competitive power