Synonyms:
- aunt,
- auntie,
- blood brother,
- boy,
- brethren,
- brother,
- bubba,
- buck,
- bud,
- buddy,
- colt,
- country cousin,
- cousin,
- cousin once removed,
- cousin twice removed,
- cub,
- daughter,
- father,
- fellow,
- first cousin,
- fledgling,
- foster brother,
- frater,
- grandnephew,
- grandniece,
- granduncle,
- great-aunt,
- great-uncle,
- half brother,
- hobbledehoy,
- kid brother,
- lad,
- laddie,
- manchild,
- master,
- mother,
- muchacho,
- nephew,
- niece,
- nuncle,
- nunks,
- nunky,
- pup,
- puppy,
- schoolboy,
- second cousin,
- sis,
- sissy,
- sister,
- sister-german,
- sistern,
- son,
- sonny,
- sonny boy,
- stepbrother,
- stepsister,
- unc,
- uncle,
- uncs,
- uterine brother,
- whelp,
- young man,
- youth