With the evolution of every language, new terms get added and old words either fade away or their meanings change in social context. Sometimes, words from foreign languages also join in. Some of those words are formal and some of these words are colloquial or slangs. Bangla Aukathyo Shobder Abhidhan is a unique dictionary compiling such colloquial terms in the Bengali language and their meanings . Dr Satrajit Goswami’s years of research has resulted in this comprehensive collection that will be a ready guide for everyone interested in Bangla.