تک

In a sentence

• میں اسکول تک دوڑتا ہوا جاؤں گا۔

  I will run all the way to the school.

  In this sentence, 'تک' indicates the endpoint of the action or location the subject is reaching towards.

• پارٹی رات گئے تک جاری رہی۔

  The party continued until late at night.

  Here, 'تک' is used to denote the time limit or extent up to which the action took place.

• یہ راز ہم دونوں کے درمیان رہے گا، کسی تیسرے تک نہ پہنچے۔

  This secret will remain between the two of us, it should not reach a third person.

  In this example, 'تک' emphasizes the extension up to another person regarding information dissemination.