THESAURUS
sonny
boy, bub, bubba, buck, bud, buddy, child, colt, cub, daughter, descendant, fellow, fledgling, foster child, grandchild, granddaughter, grandson, heiress, hobbledehoy, lad, laddie, manchild, master, muchacho, offspring, pup, puppy, schoolboy, scion, son, son and heir,
sonny boy, stepchild, stepdaughter, stepson, whelp, young man, youth