(1)   An unknown and unpredictable phenomenon that causes an event to result one way rather than another
"Bad luck caused his downfall"
"We ran into each other by pure chance"
(2)   An unknown and unpredictable phenomenon that leads to a favorable outcome
"It was my good luck to be there"
"They say luck is a lady"
"It was as if fortune guided his hand"
(3)   Your overall circumstances or condition in life (including everything that happens to you)
"Whatever my fortune may be"
"Deserved a better fate"
"Has a happy lot"
"The luck of the Irish"
"A victim of circumstances"
"Success that was her portion"


Shortened form of Middle Dutch: gheluc (happiness). Compare Modern Dutch geluk and German Glück.


  1. Something that happens to someone by chance, a chance occurrence.
    The raffle is just a matter of luck.
  2. A superstitious feeling that brings fortune or success.
    He blew on the dice for luck.


  1. To succeed by chance
    His plan lucked out.
  2. To rely on luck.
    No plan. We're just to going to have to luck through.
  3. To carry out relying on luck.
    Our plan is to luck it through.