This is the 1088th most frequent German word.
funktionieren
"Funktionieren" means "to function" or "to work."
In this sentence, 'funktionieren' is used to indicate that an object, the clock, is operational and performing its intended function without issues.
Die Uhr funktioniert einwandfrei.
The clock works perfectly.
Here 'funktionieren' is used to inquire about how something operates or the method of its operation.
Wie funktioniert dieser Mechanismus?
How does this mechanism work?
The word 'funktionieren' is applied to express the situation of an object not operating as intended, prompting action to address the issue.