verstand

In a sentence

• Er hat einen scharfen Verstand.

  He has a sharp mind.

  Here, 'Verstand' is used to refer to 'mind' or 'intellect', denoting intellectual sharpness or ability to think clearly.

• Ich habe nicht verstanden, was Du gesagt hast.

  I did not understand what you said.

  Here, the verb 'verstanden' is used in its past participle form of 'verstehen', which means 'to understand'.

• Sein Verstand ist beeindruckend.

  His intellect is impressive.

  In this sentence, 'Verstand' again denotes 'intellect' or 'intellectual capacity', used to compliment someone's mental faculties.