Definition of boldface in US English:



  • A typeface with thick strokes.

    ‘the phrase is given in boldface’
    • ‘On the list of standup comedians whose names are synonymous with ‘X-rated’, few stand out in boldface more clearly than Chris Rock.’
    • ‘Row titles in boldface indicate that significant evidence for positive selection was identified.’
    • ‘If you use italics or boldface in the manuscript, they will still need to be marked up by production.’
    • ‘In search results, search terms are now highlighted in boldface.’
    • ‘I quote it at length, with O'Reilly's rather selective quotation in boldface.’
    • ‘Therefore, if you want to exchange standard document types with other users, prepare one typical document using all the necessary formatting, including headers, italics and boldface.’
    • ‘Special formatting techniques to distinguish nonverbal notes or speaker names, such as boldface, italics, or underlining will not transfer to the spreadsheet.’
    • ‘I will die without having convinced people that you can't conclude things about the savage mind by alluding to a few opaque Inuit words for snow, but at least I will not die never having written down the truth in boldface here at Language Log.’
    • ‘Well, here's the quote, with the part that AP quoted picked out in boldface.’
    • ‘You wouldn't think that a tech company could stay in business for a whole decade when their flagship product is a word processor that can't even do boldface.’
    • ‘Almost everything an end user will have to learn is explained step-by-step, with all commands shown in boldface.’
    • ‘These standard color designation names such as deep yellow and dark grayish yellow are hereafter printed in boldface.’
    • ‘She transcribes this part of the text from my scan and adds boldface.’
    • ‘The primer sequences are labeled A - F and each sequence is in boldface.’
    • ‘The items in boldface indicate that the students were handed sets of axioms and theorems.’
    • ‘The paragraph describes neither the skill nor the job - and the paragraph is in boldface!’
    • ‘Group names, such as Biotite, are both boldface and italicized.’
    • ‘We use boldface to denote vectors.’
    • ‘Either you agree with my last pick, and you've been nodding your head ever since reading ‘The Wall’ in boldface up above, or you're too old and too deaf to care.’
    • ‘Acid residues of acid-rich regions are shown in boldface.’


  • Printed or displayed in a typeface having thick strokes.

    ‘boldface letters’
    • ‘Sequence elements deleted between Atropa and tobacco are marked in boldface letters.’
    • ‘Asterisks show nucleotides identical in the seven sequences and boldface type indicates the most common nucleotide in each position.’
    • ‘The seven haplotypes are denoted with boldface letters (A - G) to the right of the tree.’
    • ‘The latter is, moreover, typographically complex, including boldface sentences, underlinings, italics, and different typeface sizes.’
    • ‘Increasingly, that reassurance - printed in boldface type - is false.’
    • ‘Type I markers are shown in boldface type.’
    • ‘The zebrafish genes are highlighted with boldface letters.’
    • ‘Often students will use an oversized font in uppercase with boldface type.’
    • ‘Concept lists were created by having two research assistants search each textbook and catalogue all concepts in a heading, subheading, boldface type, or italics, as well as those concepts given explicit definition.’
    • ‘NBC's new motto claimed proudly in boldface type: ‘We speak the language.’’
    • ‘Here's another way to conceptualize the story - imagine a two-page scandal chart, complete with boldface names, neckless head shots, and squiggly lines indicating all the connections.’
    • ‘To be as thorough as possible, we examined the textbooks on a page-by-page basis, counting as a concept all those found in headings and subheadings, boldface print, or italics, as well as concepts that were given explicit definitions.’
    • ‘Many choose boldface letters, or add drop-shadows or slanting or underlines or neon outlines or animation.’
    • ‘The two pairs of complementary changes between structures in B and C are in boldface type and a larger type size.’
    • ‘The frequency of a given nucleotide at each position is indicated in the box at the bottom, and the most frequent (or significantly underrepresented) nucleotide is shown in boldface type.’
    • ‘Well, the story is on Page 2, and right next to his photograph, in large boldface print, is the following quote: ‘I take full responsibility for this problem.’’
    • ‘Other nodes involved in recombination events are indicated by the boldface lowercase letters a - e.’
    • ‘Regular type indicates activation, italic type no interaction, and boldface type repression in a majority of circuits.’
    • ‘In the diagram, the relatively conserved positions are presented in boldface type.’
    • ‘The location of the mutation is indicated with the uppercase A in boldface type.’