ETYM Akin to Dutch luk, geluk, German glück, Icel. lukka, Swed. lycka, Dan. lykke, and perh. to German locken to entice. Related to Gleck.
1. An unknown and unpredictable phenomenon that causes an event to result one way rather than another; SYN. fortune, chance, hazard.
2. An unknown and unpredictable phenomenon that leads to a favorable outcome; SYN. fortune.