Meanings

excessively strong labor pain

cost of a lesson learned (e.g. from failing at something)

heavy rain (specifically 20-29 mm per hour in JMA use)

somewhat strong

enhanced interrogation (e.g. waterboarding as used by the CIA)

person strong at collecting and using information

to feel encouraged

stiffness

loss on ignition

powerhouse school (sports, arts, etc.)

studying for a test

help the weak and crush the strong

help the weak and crush the strong

having good luck (e.g. in drawing a card or tile in a game)

deportation (e.g. of a refugee)

tiredness from (over-)studying

one strong, everyone else weak

robust

performance enhancement

unparalleled strength