You have seen that not all online dictionaries are equally convenient, attractive, or useful. These insights helped you develop critical thinking skills.

You have also developed skills of persuasion. You crafted one persuasive tool, your memo, for one audience; and a second one, your poster, for a different audience. You probably didn't use the same approach for both because you understood the importance of considering your audience as you write. You also recognized that different media, such as a memo and a poster, call for different techniques.

Let's return to the original question about a dictionary: what difference does it make?

Writers, like other craftspeople, choose their tools carefully. The right choice of words, the right medium, the right approach to an audience -- each one is an important component in effective communication. Even a humble dictionary can make a big difference.