• 速力そくりょく

  speed

• 速球そっきゅう

  fastball

• 速記そっき

  shorthand, stenography

• 速度そくど

  speed, velocity, pace, rate

• 速達そくたつ

  express, special delivery

• 速さはやさ

  speed, velocity, quickness, rapidity

• 速報そくほう

  news flash, prompt report, bulletin, quick announcement

• 速攻そっこう

  swift attack, quick attack, fast break

• 時速じそく

  speed (per hour)

• 秒速びょうそく

  speed per second, velocity per second

• 敏速びんそく

  quickness, agility, activity

• 早速さっそく

  at once, immediately, without delay, promptly

• 高速こうそく

  high-speed, rapid, express

• 風速ふうそく

  wind speed

• 拙速せっそく

  rough-and-ready, knocked-up, hasty, slipshod, slapdash

• 加速かそく

  acceleration, speeding up

• 迅速じんそく

  quick, fast, rapid, swift, prompt, streamlined, expedited, expeditious

• 減速げんそく

  deceleration

• 失速しっそく

  stall

• 急速きゅうそく

  rapid (e.g. progress)

• 快速かいそく

  high speed, rapidity

• 速やかすみやか

  quick, speedy, prompt, rapid, swift

• 速達便そくたつびん

  special delivery mail, express delivery post

• 全速力ぜんそくりょく

  full speed

• 高速度こうそくど

  high speed

• 超音速ちょうおんそく

  supersonic speed

• 高速バスこうそくバス

  express intercity bus

• 高速道路こうそくどうろ

  highway, freeway, expressway, motorway

• 速そく

  gear, speed (e.g. 4-speed transmission)

• 速写そくしゃ

  snapshot

• 速筋そっきん

  fast muscle

• 速効そっこう

  speedy effect

• 速読そくどく

  speed reading

• 速乾そっかん

  drying quickly

• 速筆そくひつ

  rapid writing

• 速算そくさん

  rapid calculation

• 速射そくしゃ

  quick firing, rapid firing

• 速急そっきゅう

  immediate, quick, sudden

• 速習そくしゅう

  speed learning, intensive learning

• 速醸そくじょう

  fast brewing (of sake, miso, etc.)

• 速断そくだん

  rash decision, jumping to a conclusion

• 速成そくせい

  rapid completion, intensive training

• 速贄はやにえ

  butcher-bird prey impaled on twigs, thorns, etc. for later consumption

• 音速おんそく

  speed of sound

• 変速へんそく

  shifting gears, changing gears

• 神速しんそく

  great speed, extreme speed, swiftness

• 全速ぜんそく

  full speed

• 光速こうそく

  speed of light

• 等速とうそく

  uniform velocity

• 低速ていそく

  low speed, slow speed