This is the 8271st most frequent German word.
jochen
"Jochen" is a German male first name and not a standard vocabulary word with a definition.
In this sentence, 'Jochen' is a proper noun and serves as the subject of the sentence.
Jochen lacht oft mit seinen Freunden.
Jochen often laughs with his friends.
Here, 'jochen' is used as a verb meaning to yoke or harness.
Man muss das Pferd richtig jochen, bevor man losfährt.
You have to yoke the horse properly before setting off.
In this example, 'Jochen' is again a proper noun and is being addressed directly.