What does kern mean?
A kern is a small, deliberate adjustment to the spacing between characters in printed or digital text. Designers use kerning to correct uneven gaps, especially between letters that would otherwise appear to collide or drift apart, producing cleaner and more visually balanced typography. The word can also refer, in older and regional English, to a grain or seed, particularly maize. Although the effect may be nearly invisible, kerning can significantly affect the polish and readability of a word, heading, or logo. The term is especially familiar in graphic design, publishing, font development, and digital layout, where individual character pairs may be adjusted rather than every letter receiving the same spacing. Outside specialist writing, the typographic meaning is now much more prominent than the older agricultural one.
A deliberate adjustment to the spacing between particular typographic characters, used to improve the visual appearance of text.
"The typesetter corrected the kern between the capital T and the following lowercase letter."
Also used figuratively in typography and graphic design for the spacing adjustment itself.
A grain or seed, especially of maize.
"Each kern of maize was carefully separated from the cob."
This sense is archaic or regional in modern English.
To adjust the spacing between typographic characters, especially to improve the appearance of a word or line.
"The designer kerned the heading so that its letters appeared evenly spaced."
Technical terminology used in typesetting, font design, and graphic design.
The plural is straightforward but uncommon; in typography it may refer to individual spacing adjustments.
"The font designer tested several kerns between the paired capitals."
A kern is typography's invisible handshake: a tiny space adjustment that can make an entire line look right.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does kern come from?
The older noun meaning “grain” or “seed” comes through Middle English from Old English cærn, a Germanic word related to forms found in cognates such as corn, German Korn, and Dutch koren; kernel developed as a related derivative. The typographic sense entered English as specialized printing terminology and was later extended to digital typography, where it describes adjustments to the spacing between selected character pairs.
Related word forms
How kern is actually used
The typographic sense is technical but common in design, publishing, and digital typography. The agricultural sense is dated in general modern English and survives chiefly in regional, historical, or specialized usage.
Easily confused with kern
A kern is an adjustment to the spacing of typographic characters, whereas a kernel is the edible seed or central part of something.