Worm

draad

(something helical, especially the thread of a screw)

mormel

(contemptible being)

pier

(animal)

schroef

(something helical, especially the thread of a screw)

worm

(animal)

worm

(contemptible being)

worm

(self-replicating program)

wurm

(animal)

zich wurmen

(to move with one's body dragging the ground)

zich wurmen

(to get (into) gradually or slowly)

zich wurmen

(to work one's way by artful or devious means)