Denshi Jisho — Online Japanese dictionary

そく gear; speed (as in 4 speed automatic transmission and such)
Suffix 
かそく 1: acceleration; speed up;
2: (Noun or verb acting prenominally) accelerator
Common word, Noun, Suru verb 
じそく speed (per hour)
Common word, Noun 
ちそく speed; progress
Noun 
なにわ Naniwa (former name for Osaka region)
Noun 
びそく very slow speed
Noun 
かいそく high speed; celerity; mobility; express (train that bypasses many stations)
Common word, Na-adjective, Noun, No-adjective 
げんそく deceleration
Common word, Noun, Suru verb, No-adjective 
こうそく 1: high speed; high gear;
2: (Abbreviation) highway; freeway; expressway; motorway
Common word, Na-adjective, Noun, No-adjective 
さっそく at once; immediately; without delay; promptly
Common word, Adverb 
しっそく stall (in flying)
Common word, Noun, Suru verb 
じんそく quick; fast; rapid; swift; prompt; streamlined; expedited; expeditious
Common word, Na-adjective, Noun 
せっそく hasty; rough and ready
Common word, Na-adjective, Noun 
びんそく quickness; agility; activity
Common word, Na-adjective, Noun 
ふうそく wind speed
Common word, Noun 
おんそく speed of sound
Noun 
かんそく slow speed
Noun 
こうそく speed of light
Noun 
さいそく fastest
No-adjective 
しゃそく vehicle speed; speed
Noun 
しょそく initial velocity
Noun, Physics term 
しんそく godspeed; swiftness
Na-adjective, Noun 
ぜんそく full speed
Noun, No-adjective 
ていそく low gear; slow speed
Noun, No-adjective 
とうそく uniform velocity
Noun 

Found 47 words. Page one, two

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