There are multiple definitions - click on the translation that matches your context.

Abdankung

Substantiv

full

abdication

noun

Definitions of abdication

English

a failure to complete a duty or a responsibility

I also urge Congress to end its abdication of responsibility over the war effort.

English

the act of making a formal statement that a king or queen no longer wishes to be king or queen

For Spanish Republicans, the abdication of the King is more than just a moment to savour and celebrate.