This is the 3154th most frequent German word.
dreier
"Dreier" in German refers to a group or set of three, or colloquially to a threesome.
The word 'Dreier' is used here in the context of sports, specifically basketball, referring to a shot that scores three points.
Ich habe einen Dreier geworfen.
I threw a three-pointer.
Here, 'Dreier' signifies a grade of three (mittelmäßig or average) commonly used in German educational grading systems.
Der Dreier ist eine wichtige Note im deutschen Schulsystem.
The grade of three is an important mark in the German school system.
In this sentence, 'Dreier' is utilized to refer to a trio or group of three, often implying an activity or arrangement involving three people.