LY meaning in Measurement Unit ?

Answer:

What is Light Year mean?

A light-year, alternatively spelled lightyear, is a unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (9.46×1012 km) or 5.88 trillion miles (5.88×1012 mi). As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). Because it includes the word "year", the term light-year is sometimes misinterpreted as a unit of time.

The light-year is most often used when expressing distances to stars and other distances on a galactic scale, especially in non-specialist contexts and popular science publications. The unit most commonly used in professional astronomy is the parsec (symbol: pc, about 3.26 light-years) which derives from astrometry: it is the distance at which one astronomical unit subtends an angle of one second of arc.

reference

Full Form	Category
Last Year	Business
Labor Youth	Community
Libya (TLD)	Computing
Leap Year	General
Linear Yard	General
Large Yes	General
Let You	General
Luxurious Yacht	General
Luxury Yacht	General
Lexus Yacht	General
Lee Yang	General
Love Yourself	General
Loves You	General
Light Years	General
Labour Youth	Governmental
Lucifer Yellow	International
Linux Youth	Internet
Lehman/yao	Maths
Light Year	Measurement Unit
Laughter Yoga	Medical
Live Young	Messaging
Love Ya	Messaging
Lost You	Messaging
Love You	Messaging
Lysander (british Ww Ii Airplane)	Military and Defence
Lower Yukon	Regional