joule

n (abbr 缩写 J) (physics 物) unit of energy or work 焦耳（能量或功的单位）.

joke, joker, jokey, jokingly, jollification, jollity, jolly, jolly-boat, jolt, jolty, Joneses, jonquil, Joseph, josh, joss-stick, jostle, jot, jot down, jotter, jottings, journal, journalese, journalism, journalist, journalistic, journey, journeyman, joust, Jove, jovial, joviality, jovially, jowl, joy, joy-ride, joy-rider, joy-riding, joyful, joyfully, joyfulness,