noun
- A younger brother.
- usage: "my little brother just had his 50th birthday"
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). little brother. Retrieved September 21, 2026, from http://smartdefine.org/little_brother/definitions/1230801 |
| Chicago | WordNet. 2010. "little brother" http://smartdefine.org/little_brother/definitions/1230801 (accessed September 21, 2026). |
| Harvard | WordNet 2010, little brother, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/little_brother/definitions/1230801>. |
| MLA | WordNet. "little brother" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/little_brother/definitions/1230801> |