Definition

Noun: A ligne is a specific linear unit of measurement, historically used to measure the diameter of buttons and watch movements. One ligne is equal to 1/40 of an inch.

Usage

The word ligne is a technical term. It is used almost exclusively in historical or specialized contexts, such as horology (watchmaking) and the manufacture of buttons or small items. * It functions as a countable noun (e.g., "a 20-ligne movement"). * It is typically preceded by a number to indicate a specific measurement.

Examples

• Noun:
  • This antique button has a diameter of 16 lignes.
  • The watchmaker ordered a mainspring for a 12-ligne caliber.
  • In the 18th century, button sizes were standardized by ligne.

Advanced Usage

• Historical Context: The ligne is an old French unit of length that was adopted by Swiss and French watchmakers. Its use persists in these traditional industries to describe the size of watch movements and cases, even where the metric system is standard.
• Technical Specification: In modern watch catalogs, you might see a movement described as "ETA 2824-2, 11½ '''lignes'''" to indicate its size.

Variants and Related Words

• Ligne is a loanword from French. It does not have common English verb or adjective forms.
• Point: Another small unit of measurement used in typography (1 point = 1/72 inch), sometimes confused with ligne but used in a different field.

Synonyms

• Unit (of measurement): A general term for a standard quantity used to measure.
  • The millimeter has replaced the ligne as the standard unit for most small measurements.

Antonyms

• There is no direct antonym for a unit of measurement. Contextual opposites could be immeasurability or terms for large units like mile or kilometer.

Notes

• The word ligne is pronounced similarly to the English word "line" (/liːn/).
• It is considered a highly specialized term. In most modern contexts, millimeters (mm) are used instead. For example, a 20-ligne watch movement is approximately 45.0 mm in diameter.

Noun

1. a linear unit (1/40 inch) used to measure diameter of buttons