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addaword.gifdefinition of co-sister

in Indian English, the wife of your husband's brother
Leela is my co-sister.
Submitted by: Jay Gowda from India on 28/05/2014 13:10:00
Definition of co-sister from the Open Dictionary – a public resource hosted by Macmillan English Dictionary Online


… a teaching method in which groups of children learn independently using a computer linked to the internet

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