This is the 12991st most frequent German word.
zweieinhalb
Two and a half.
The word 'zweieinhalb' specifies the amount of time, which is two and a half hours.
Ich habe zweieinhalb Stunden damit verbracht, meine Hausaufgaben zu machen.
I spent two and a half hours working on my homework.
Here, 'zweieinhalb' quantifies a distance, indicating two and a half kilometers.
Der Abstand zwischen den beiden Städten beträgt etwa zweieinhalb Kilometer.
The distance between the two cities is about two and a half kilometers.
In this context, 'zweieinhalb' is used with a countable noun, describing two and a half apples.