Dictionary/スピードSupiidoJLPT N1スピード (Supiido) is a Japanese noun meaning “speed”.MeaningsnounspeedExamples彼はスピードを上げた。He accelerated.スピードの出しすぎだよ。You're driving too fast.制限スピードを超えるなよ。Don't go beyond the speed limit.Sentences from Tatoeba (CC BY 2.0 FR).