強い【つよい】
strong, potent, competent, domineering, tough, strong, brawny, powerful, healthy, rugged, good (at), skilled, knowledgeable, being able to handle, know how to deal (with), durable (against), resistant (to), resilient, firm, rigid, solid, intense, strong, fierce, high, dependable, trustworthy
勉強【べんきょう】
study, diligence, working hard, experience, lesson (for the future), discount, price reduction
最強【さいきょう】
strongest
強い【こわい】
tough, stiff, hard, inflexible, obstinate, stubborn, tired, worn out
強盗【ごうとう】
robber, mugger, robbery, burglary
強力【きょうりょく】
powerful, strong
強化【きょうか】
strengthening, intensifying, reinforcement, enhancement, solidification
強烈【きょうれつ】
strong, intense, severe
強制【きょうせい】
compulsion, coercion, forcing (to do), enforcement
強引【ごういん】
overbearing, coercive, pushy, forcible, high-handed
力強い【ちからづよい】
powerful, strong, forceful, vigorous, reassuring, encouraging
強要【きょうよう】
coercion, extortion, compulsion, force
心強い【こころづよい】
heartening, reassuring
強気【つよき】
confident, assured, self-assured, firm, strong, cocksure, bullish (e.g. market)
強さ【つよさ】
strength, power
強敵【きょうてき】
formidable enemy, strong enemy, tough enemy
強める【つよめる】
to strengthen, to emphasize, to emphasise
補強【ほきょう】
reinforcement, strengthening
強風【きょうふう】
strong wind, high wind, moderate gale
強行【きょうこう】
forcing (e.g. a vote), carrying out (forcibly), pushing ahead (with), enforcement