libra
noun
li·bra 
for senses 1 & 2a
ˈlē-brə sometimes ˈlī-brə,
for sense 2b ˈlē-brə,
or
ˈlēv-rə 1
capitalized
a
: a southern zodiacal constellation between Virgo and Scorpio represented by a pair of scales
b(1)
: the seventh sign of the zodiac in astrology see Signs of the Zodiac Table
(2)
: one born under the sign of Libra
2
a
plural librae ˈlī-ˌbrē
ˈlē-ˌbrī
[Latin] : an ancient Roman unit of weight equal to 327.45 grams b
[Spanish & Portuguese, from Latin] : any of various Spanish, Portuguese, Colombian, or Venezuelan units of weight
Word History
Etymology
Middle English, from Latin (genitive Librae), literally, scales, pound
First Known Use
before the 12th century, in the meaning defined at sense 1a
Kids Definition
Libra
noun
Li·bra
ˈlē-brə,
ˈlī-
1
: a constellation between Virgo and Scorpio imagined as a pair of scales
2
: the seventh sign of the zodiac or a person born under this sign