Definition

Noun: 1. (Printing/Typography) The narrowest unit of horizontal space used in typesetting to create subtle separation between characters or words, thinner than a thin space.

Usage

• Primary Use: A "hair space" is a typographic measurement used for fine adjustments in text layout. It is not typically used in standard word processing but is essential in professional typesetting and design software.
• Function: It is used to improve visual appearance (kerning) by slightly increasing the space between specific letter pairs (e.g., "A" and "V") or to add a minute separation before or after punctuation within a line of text.

Examples

• "To improve the kerning between the letters 'T' and 'o,' the typesetter inserted a hair space."
• "In fine typography, a hair space is often used before a colon or semicolon in certain style guides."
• "The designer adjusted the letter-spacing by adding hair spaces to achieve a more balanced look."

Advanced Usage

• Digital Typography: In modern font files and design applications (e.g., Adobe InDesign), a hair space is often defined as 1/24th of an em space, making it significantly thinner than a standard word space.
• Technical Specification: It is the smallest in the hierarchy of typographic spaces, which typically includes (from widest to narrowest): em space, en space, thin space, hair space.

Variants and Related Words

• Thin Space (n): A typographic space wider than a hair space but narrower than a standard word space, often used as a thousands separator or before certain punctuation in some languages.
• Em Space (n): A unit of space equal to the currently specified point size (historically the width of the capital letter 'M').
• En Space (n): A unit of space equal to half the width of an em space.
• Fixed Space (n): Any typographic space, like a hair space, that has a specific, unvarying width, as opposed to the variable width of a standard word space justified by software.

Synonyms

• Hairline Space (n): A less common but synonymous term.
• Fine Space (n): A descriptive, non-technical synonym.

Related Terms and Concepts

• Kerning (n): The adjustment of space between individual letterforms.
• Tracking (n): The uniform adjustment of spacing across a range of characters.
• Letterspacing (n): The general spacing between characters in a block of text.

Noun

1. (printing) the narrowest of the spaces used to separate words or letters