比率【ひりつ】
ratio, proportion, percentage
効率【こうりつ】
efficiency
率直【そっちょく】
frank, candid, straightforward, openhearted, direct, outspoken
確率【かくりつ】
probability, likelihood, chances
利率【りりつ】
interest rate
倍率【ばいりつ】
magnification, leverage, amplification, scaling factor, scale factor, competitiveness rating (e.g. for university entrance), applicant-to-acceptance ratio
能率【のうりつ】
efficiency, moment
軽率【けいそつ】
rash, thoughtless, careless, hasty, imprudent
率いる【ひきいる】
to lead, to spearhead (a group), to command (troops)
率先【そっせん】
taking the initiative