What is the meaning of Dienen?

to serve

to ought to, to be to, be expected to

to serve [with bei (+ dative) ‘in public office or the military’]

to serve, to be a servant [with dative ‘for someone’]

to serve [with dative ‘a cause, a purpose’]

to assist, to be of assistance

to serve (as), to double (as), to act as a replacement (for) [with als (+ usually nominative) ‘something (a replacement)’]

to serve, to obey

to be in service of

to serve (food)

to help, to take care of

to provide with

feminine of dinnen

neuter of dinnen

plural of dinnen

definite singular of dien

Source: wiktionary.org