Jove/dʒəʊv/ Definition 1 of 1Pro Tip 1/3Expressing Surprise Used for sudden realization or surprise, often in an archaic or humorous sense. By Jove, I think she's got it! Pro Tip 2/3Seldom Usage 'Jove' is rarely used in modern English and may sound outdated or formal. He exclaimed 'By Jove!' when he won the chess game. Pro Tip 3/3Literary Flair Incorporating 'jove' can give a statement a literary or classical flair due to its mythological roots. By Jove, this plan is rather ingenious!