luck

noun

1. your overall circumstances or condition in life (including everything that happens to you)

   noun.state

   Examples

   The luck of the Irish.

   Synonyms circumstances destiny fate fortune lot portion

   Source: WordNet 3.0

2. an unknown and unpredictable phenomenon that causes an event to result one way rather than another

   noun.phenomenon

   Examples

   Bad luck caused his downfall.

   Synonyms chance fortune hazard

   Source: WordNet 3.0

3. an unknown and unpredictable phenomenon that leads to a favorable outcome

   noun.phenomenon

   Examples

   It was my good luck to be there.

   They say luck is a lady.

   Synonyms fortune

   Source: WordNet 3.0

4. That which happens to a person; an event, good or ill, affecting one's interests or happiness, and which is deemed casual; a course or series of such events regarded as occurring by chance; chance; hap; fate; fortune; often, one's habitual or characteristic fortune; as, good, bad, ill, or hard <i>luck</i>. <i>Luck</i> is often used for <i>good luck</i>; as, <i>luck</i> is better than skill.

   noun

   Source: webster1913