速そくTop 20000MeaningsSuffixCounter1. gear; speed (e.g. 4-speed transmission)Kanji used速fastPitch accentそくUsed in vocabulary速そく戦せん即そっ決けつquick battle for a quick victory; blitzkriegNoun速そっ効こう性せい肥ひ料りょうquick-acting fertilizer; quick-acting fertiliserNoun全ぜん速そく前ぜん進しんFull speed ahead!; Full steam ahead!Expression等とう速そく運うん動どうuniform motionNoun速そっ筋きん線せん維いfast-twitch muscle fiber; fast muscle fiberNounExamples1オプションとして４速そく自じ動どう変へん速そく機きも選えらべる。4-speed automatic transmission is available as an option.