To choose by lot; to select randomly by drawing lots or a lottery.
参加人数が多かったので代表はくじで選ぶことにした。
Because many people participated, we decided to choose the representative by lot.
商品の当選者はくじで選び、結果は後日発表します。
Winners of the prizes will be chosen by lot; the results will be announced later.
公平を期すため、順番はくじで選んだ。
To be fair, the order was determined by drawing lots.