Jack (playing card) Jack (playing card) A jack or knave is a playing card which, in traditional French and English decks, pictures a man in the traditional or historic aristocratic dress generally associated with Europe of the 16th or 17th century. The usual rank of a jack, within its suit, plays as if it was an 11 (that is, between the 10 and the queen). As the lowest face (or "court") card, the jack often represents a minimum standard — for example, many poker games require a minimum hand of a pair of jacks ("jacks or better") in order to continue play. The
Jack (playing card) As early as the mid-16th century the card was known in England as the knave (meaning a male servant of royalty). Although "jack" was in common usage to designate the knave, the term became more entrenched when, in 1864, American cardmaker Samuel Hart published a deck using "J" instead of "Kn" to designate the lowest-ranking court card. The knave card had been called a jack as part of the terminology of the game All Fours since the 17th century, but this usage was considered common or low class. However, because the card abbreviation for knave was so close to that