In typography, a thin space is a space character that is 1⁄5 (sometimes 1⁄6) of an em wide. It is used to add a narrow space, such as between nested quotation marks or to separate glyphs that interfere with one another.
In Unicode, thin space is encoded at U+2009 thin space (HTML
). Unicode's U+202F narrow no-break space (HTML
) is a non-breaking space with a width similar to that of the thin space.
In LaTeX and Plain TeX,
\thinspace produces a narrow, non-breaking space. Outside math formulas in LaTeX,
\, also produces a narrow, non-breaking space, but inside math formulas it produces a narrow, breakable space.
In Microsoft Word, in the symbol dialog (often available via Insert > Symbol or Insert > Special Characters), both the thin space and the narrow no-break space are available for point-and-click insertion. In Word's Symbol dialog, under font = "(normal text)", they are found in subset = "General Punctuation". Other word processing programs have ways of producing a thin space.
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