proportional font

British  

noun

1. computing a font type in which the width of letters and symbols varies depending on the letter or symbol

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Example Sentences

Plus, the researchers used a monospaced font, and most computers use proportional fonts — meaning the researchers acknowledge that the findings “may differ” when it comes to other situations, like the ones we encounter most often.

From The Verge

A proportional font is one where each letter takes up just the amount of space it needs, so that a capital "W" is much wider than a small "i".

From Project Gutenberg