Third-person singular present form of 'boldface': to make text appear in bold typeface.
From 'boldface' (noun/verb) with the third-person singular suffix '-s/-es,' which marks the present tense when the subject is 'he,' 'she,' 'it,' or a singular noun. Standard English verb conjugation.
When you 'boldface' something on a computer, you're using a verb that didn't even exist before the 1960s—showing how quickly language adapts to new technology!
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