dienen

to serve .mw-parser-output .object-usage-tag{font-style:italic}.mw-parser-output .deprecated{color:var(--wikt-palette-grey-lime-8,olivedrab)}[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