অব্দ (Assamese) [ Roman: ob.do]
    Contributed by: Biraj Kumar Kakati on 2008-04-10
    1. (Abstract Noun) the time taken by the earth to revolve around the sun. পৃথিৱীয়ে সূৰ্য্যৰ চাৰিফালে এবাৰ প্ৰদক্ষিণ কৰিবলৈ লগা সময়৷