regen

In a sentence

• Es hat die ganze Nacht geregnet.

  It rained all night.

  Here, 'regnet' is the verb form in past tense of 'regen', used in the context of rainfall.

• Nach dem Regen scheint die Sonne wieder.

  After the rain, the sun shines again.

  In this sentence, 'Regen' is used as a noun, referring to the weather condition of rain.

• Die Diskussion regte interessante Gedanken an.

  The discussion stimulated interesting thoughts.

  Here, 'regte' is used as a verb meaning 'to stimulate or provoke', showing a metaphorical use of the word 'regen' in a broader context beyond weather.