sib
noun/sɪb/
/sɪb/
(biology)- a brother or sisterWord OriginOld English ‘related by birth or descent’, of unknown origin. Modern senses date from the late 19th and early 20th cents.
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation:
sib