After installing SyvumClick, you can select (mark/highlight) any word in any page you are viewing in your Internet Explorer to immediately look it up on an online resource such as a dictionary, thesaurus, search engine or translation service. On Windows, you can double-click any word to mark it. You can also select multiple word text strings for lookup. This feature is extremely useful for looking up meanings of words, or to translate complete sentences from one language to another.