sometime; someday; one day; some time or other; the other day; in due course; in time
Example sentences
彼は自分の短気でいつか困ったことになるだろう。
His quick temper will get him in trouble one day.
彼は自分がいつか新発見すると確信していた。
He was sure that he would make a new discovery some day.
彼はぼんやり暮していたら、いつか４０歳になった。
He lived idly and found himself already forty years old.