速度(そくど) そくど noun speed, velocity formaltechnical 1. speed, velocity, rate The rate at which something moves or happens. 制限(せいげん)速度(そくど)を守(まも)ってください。🔊 Please observe the speed limit. 光(ひかり)の速度(そくど)は非常(ひじょう)に速(はや)い。🔊 The speed of light is extremely fast. 速度(そくど)を上(あ)げる必要(ひつよう)がある。🔊 We need to increase the speed. 速度(そくど) is a technical/formal term for speed.Common collocations制限(せいげん)速度(そくど) (speed limit)最高(さいこう)速度(そくど) (maximum speed)速度(そくど)を落(お)とす (to reduce speed)速度(そくど)違反(いはん) (speeding violation)処理(しょり)速度(そくど) (processing speed)通信(つうしん)速度(そくど) (communication speed)Similar words速度(そくど): speed (formal/technical)スピード: speed (casual, from English)速(はや)さ: speed, quickness (general) Related Words Synonym: スピード (speed (everyday, loanword)) Compare: 速(はや)さ (speed, quickness) general Added 2026.1.12 10:13 · Revised 2026.9.2 12:02 03000/03319_sokudo