Let's look at the meaning of the marked option: - Cerulean (adjective)- deep blue in color like a clear sky - Cerulean= আকাশনীল। Let's look at the meanings of the other given options: - Quickly (adverb)- at a fast speed; rapidly - into (preposition)- expressing motion or direction. - Somewhere (adverb)- in or to someplace Hence, from the given meanings, we find that Cerulean is the correct choice.