• Bengali Word বিজ্ঞ English definition (adjective) learned; erudite; wise; experienced; clever; expert; prudent; judicious. বিজ্ঞা (feminine) = বিজ্ঞ. বিজ্ঞতা, বিজ্ঞত্ব (noun) learning; erudition; wisdom; experience; expertise; judiciousness; prudence; cleverness.