Definition of little brother/sister
: a brother/sister who is younger than one
Learn More About little brother/sister
Statistics for little brother/sister
Look-up Popularity
Cite this Entry
“Little brother/sister.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/little%20brother%2Fsister. Accessed 18 Oct. 2021.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Difficult Spelling Words Quiz
-
- Which is the correct spelling?
Test your vocabulary with our 10-question quiz!
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Name that Thing: Musical Instruments
Can you correctly identify these musical instrume...
Take the quiz
-
Surprising Latin American Origins Behind Everyday Words
What treat did the Aztecs refer to as "bitter wat...
Take the quiz
-
How Strong Is Your Vocabulary?
Test your vocabulary with our 10-question quiz!
Take the quiz
Share little brother/sister