This is the 1014th most frequent Dutch word.
belgen
"Belgen" means "Belgians" (people from Belgium) in English.
Here, 'Belgen' is used as a noun to refer to people from Belgium, specifically the inhabitants.
De Belgen zijn bekend om hun heerlijke chocolade.
The Belgians are known for their delicious chocolate.
In this context, 'belgen' is a verb derived from 'bellen' meaning to make phone calls, transformed to add grammatical inflection or emphasis.
Mijn vrienden en ik belgen vaak naar elkaar via Skype.
My friends and I often call each other via Skype.
Here, 'Belgen' is a plural noun referring to individual people from Belgium.