Longman Dictionary of Contemporary English - yours

pronoun 1 belonging to or connected with the person or people someone is speaking to  (This is our room, and yours (=your room) is just opposite. | My eyes are blue and yours are green. | Is Maria a friend of yours?) 2 be yours for the taking/asking if something important, desirable etc is yours for the taking, you can easily obtain or achieve it  (If you want the job, it's yours for the taking.) 3 Yours faithfully/truly used to end a formal letter that begins `Dear Sir' or `Dear Madam' 4 Yours sincerely/Yours used to end a less formal letter that begins `Dear Mr. Graves', `Dear Miss Hope' etc 5 yours truly informal used to mean `I', `me', or `myself'  (They all went out, leaving yours truly to clear up the mess.)