بک

In a sentence

• میں نے ایک نئی کتاب بک کی۔

  I reserved a new book.

  Here, "بک" is used as a verb meaning 'to reserve'.

• یہ بک بہت قیمتی ہے۔

  This book is very valuable.

  In this case, "بک" refers to a noun, meaning 'book'.

• کانفرنس کے لئے ہال بک کرنا ضروری ہے۔

  It is necessary to book a hall for the conference.

  Here, "بک" is used in the context of scheduling or reserving a space as a verb.