Word: 火速 (huǒsù) 火速 dictionary entry huǒsù at top speed; at a tremendous lick Full dictionary entry for 火速 Example sentences using 火速 2 sentences, showing page 1 of 1. 听说奶奶生病，我火速回了家。 Tīngshuō nǎinai shēngbìng, wǒ huǒsù huíle jiā. When I heard Grandma was ill, I dashed home at once. 消防车火速开往出事的地方。 Xiāofángchē huǒsù kāiwǎng chūshì de dìfāng. The fire engines sped to the place where it happened.