[ lahy-bruh, lee- ]
/ ˈlaɪ brə, ˈli- /
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noun, plural li·brae [lahy-bree, lee-brahy]. /ˈlaɪ bri, ˈli braɪ/.

the ancient Roman pound (containing 5053 grains or 327.4 grams).



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Origin of libra

1350–1400; Middle English <Latin lībra

Definition for libra (2 of 3)

[ lee-vrah ]
/ ˈli vrɑ /

noun, plural li·bras [lee-vrahs]. /ˈli vrɑs/.

Origin of libra

<Spanish <Latin lībralibra1

Definition for libra (3 of 3)

[ lee-bruh, lahy- ]
/ ˈli brə, ˈlaɪ- /

noun, genitive Li·brae [lee-brahy, lahy-bree] /ˈli braɪ, ˈlaɪ bri/ for 1.

Astronomy. the Balance, a zodiacal constellation between Virgo and Serpens.
  1. the seventh sign of the zodiac: the cardinal air sign.
  2. Also Libran. a person born under this sign, usually between September 23rd and October 22nd.

Origin of Libra

1350–1400; Middle English <Latin lībra literally, pair of scales, libra1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for libra

British Dictionary definitions for libra (1 of 2)

/ (ˈlaɪbrə) /

noun plural -brae (-briː)

an ancient Roman unit of weight corresponding to 1 pound, but equal to about 12 ounces

Word Origin for libra

C14: from Latin, literally: scales

British Dictionary definitions for libra (2 of 2)

/ (ˈliːbrə) /

noun Latin genitive Librae (ˈliːbriː)

astronomy a small faint zodiacal constellation in the S hemisphere, lying between Virgo and Scorpius on the ecliptic
  1. Also called: the Scales, the Balance the seventh sign of the zodiac, symbol ♎, having a cardinal air classification and ruled by the planet Venus. The sun is in this sign between about Sept 23 and Oct 22
  2. a person born under this sign


astrology born under or characteristic of Libra
Also (for senses 2b, 3): Libran (ˈlɪbrən)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for libra

[ lēbrə ]

A constellation in the Southern Hemisphere near Scorpius and Virgo. Libra (the Scales or Balance) is the seventh sign of the zodiac.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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