Definition
To underline means to draw a line beneath a word, phrase, or sentence to emphasize it. It's a visual cue that highlights the importance of specific text. Imagine you're reading a textbook and want to remember a key concept; you might underline it with a pen or highlighter. Unlike bolding or italicizing, underlining provides a straightforward visual distinction. It's a simple but effective way to make important information stand out. Underlining draws the reader's eye and signals, "This is something you should pay attention to!"