This is the 4449th most frequent German word.
kauft
"Buys"
In this sentence, 'kauft' is a conjugated form of the verb 'kaufen', meaning 'to buy'. It is in the third person singular present tense, used here to indicate that 'he' is performing the action of purchasing.
Er kauft ein Auto.
He buys a car.
Here, 'kaufen' is conjugated in the first person plural present tense 'kaufen', indicating that 'we' are performing the action of buying items in the current time frame.
Wir kaufen Gemüse auf dem Markt.
We are buying vegetables at the market.
In this example, 'kauft' again is in the third person singular present tense, contextualizing the regular activity of buying within her routine, emphasizing habitual action.