boldface

A font that is dark, having a high ratio of ink to white space, written or drawn with thick strong lines.

To print or write in a boldfaced font.

Boldface the due date so they are sure to see it.

Synonym of boldfaced.

While the retailer talks about savings of 10 percent off on every item in stock in very boldface type, there is a fine line that indicates at the bottom of the ad, “with the exception of a few fair trade items.”

If you make a word boldface, it is boldface on the screen.