jack name definition
In Polish the meaning of the name Jack is: God is gracious. English Meaning: The name Jack is an English baby name. In English the meaning of the name Jack is: God is gracious. During the Middle Ages, Jack was so common that it was used as a general term for 'man' or 'boy'.Famous Bearer: American actor Jack Lemmon.n Polish the meaning of the name Jack is: God is gracious. English Meaning: The name Jack is an English baby name. In English the meaning of the name Jack is: God is gracious. During the Middle Ages, Jack was so common that it was used as a general term for 'man' or 'boy'.