noun
luck, happiness
A1
Glück: means luck (fortune) and happiness. It's a neuter noun (das Glück), usually uncountable; plural die Glücke is rare. Genitive des Glücks. Used in phrases like 'Glück haben' (to be lucky) and 'zum Glück' (fortunately). No irregular declension except rare plural.
Examples
Der Spieler hatte Glück, weil der Gegner einen Fehler machte.
The player was lucky because the opponent made a mistake.
Ich habe Glück.
I'm lucky.
Viel Glück bei der Prüfung!
Good luck with the exam!
Details
Mnemonics
imagine a four-leaf clover for luck
Glück ~ 'glee' (both positive) — think of joy
das Glück — neuter: think of an abstract 'das' concept
Notes
Often uncountable when referring to 'luck' or 'good fortune'.