a light year is a unit of distance it is the distance that light can travel in one year light moves at a velocity of about 300000 kilometers km each second so in one year it can travel about 10 trillion km more p recisely one light year is equal to 9500000000000 kilometers
Hacker is something no golfer ever wants to be called. Hacker is a derogatory term in golf that means: someone who rarely plays golf so is quite bad when they do; generally, any golfer who is just not very good at it; a mediocre or poor golfer who displays bad golf etiquette and/or poor sportsmanship.
Definition of hack. 1  1 : a tool for rough cutting or chopping : an implement for hacking. 2  2 : nick, notch. 3  3 : a short dry cough. 4  4 : a rough or irregular cutting stroke : a hacking blow. 5  5 : restriction to quarters as punishment for naval officers âusually used in the phrase under hack.