I don't speak or understand Bengali and can't read the written form either, but when looking it up on Google translate, I got the following result:
আম or Āma
which is similar to the Hindi/Urdu word Aam (आम in Devanagari script) (آم in Urdu script).
আম or Āma
which is similar to the Hindi/Urdu word Aam (आम in Devanagari script) (آم in Urdu script).
>> Like chai vs tea, the two words (that I know of) are aam and mango.
I was referring to either aam or mango being a word that's common in many languages throughout the world, like chai and tea. So, আম or Āma is similar enough to Aam (आम or آم).