English

Definition of sis noun from the Oxford Advanced Learner's Dictionary

 

sis

 noun
noun
BrE BrE//sɪs//
 
; NAmE NAmE//sɪs//
 
(informal)
 
jump to other results
sister (used when you are speaking to her) Word Origin mid 17th cent.: abbreviation.
See the Oxford Advanced American Dictionary entry: sis