The word "leviathan" is a noun that means A sea monster, especially in biblical accounts.. In Bengali, it is expressed as "লিভিয়াথান, তিমি, বিশাল জলজন্তু", which carries the same essential meaning. For example: "The 'leviathan' of the deep sea is a source of both fear and fascination.". Understanding "leviathan" enhances vocabulary and improves language comprehension for both English and Bengali speakers.