The word "ultramarine" is a adjective, noun that means A brilliant deep blue pigment originally obtained from lapis lazuli.. In Bengali, it is expressed as "আলট্রামেরিন, গাঢ় নীল, অতলান্তিক নীল", which carries the same essential meaning. For example: "The artist used ultramarine to paint the deep ocean.". Understanding "ultramarine" enhances vocabulary and improves language comprehension for both English and Bengali speakers.