The kanji character 速 generally represents the concept of "speed," "swiftness," or "rapidity." It conveys the idea of something moving or happening quickly, efficiently, or without delay. It emphasizes a characteristic of time, emphasizing the rate at which something occurs.

・On-yomi (音読み): ソク (soku) ・Kun-yomi (訓読み): はやい (hayai)

⚫︎ 速度 (sokudo) Translation: Speed ⚫︎ 高速道路 (kōsoku dōro) Translation: Expressway, highway ⚫︎ 速く走る (hayaku hashiru) Translation: To run fast

The kanji 速 is a phono-semantic compound (形声文字, keisei moji). The left side is the radical 辶 (しんにょう, shinnyō), which signifies "movement" or "to go." The right side is 束 (soku), which originally depicted a bundle of things tied together, and later evolved to imply "quickly" or "speedily." The combination suggests the idea of "going fast" or "moving rapidly." Over time, the character has been simplified from its original form, but the core meaning of speed and swiftness remains.