Home/JLPT null/Vocabulary/秒速秒速🔊☆ Save to listびょうそくMeaning—Kanji in this word秒速Example sentences光の速度は秒速およそ186,000マイルである。The velocity of light is about 186,000 miles per second.Related wordsいち早く加速快速急速減速高速秒秒読み