You can indicate when you are using an acronym form by placing the acronym between opening and closing tags. Acronym word means using a word from foreign country word or foreign country language word. You can also define these word Language tag in header section. Consider using a title attribute whose value is the full version of the acronym. For example, if you want to indicate that Rom is an acronym for Romiojulit, you can use the element like so: I have a friend called Rom . Firefox gives the elements a dashed underline, and when you hover your cursor over the word, the value of the title attribute shows as a tooltip. Internet Explorer does not change the appearance of the element, although it does show the title as a tooltip.