back

To or into the place, state or condition that someone or something was in before.

• Please put the book back on the shelf.
  Lütfen kitabı rafa geri koy.
• I'll be back in ten minutes.
  On dakika içinde geri dönerim.

Away from the front, or in the direction behind you.

• Please stand back from the edge of the platform.
  Lütfen peronun kenarından geri çekilin.
• She looked back to see if anyone was following her.
  Biri onu takip ediyor mu diye arkaya baktı.

In return, or as a reply to something.

• She smiled back at him across the room.
  Odanın öbür ucundan ona gülümseyerek karşılık verdi.
• I'll call you back after the meeting.
  Toplantıdan sonra seni geri ararım.

In or into an earlier time.

• Back then, there were no mobile phones.
  O zamanlar cep telefonu yoktu.
• I met him a few years back at a wedding.
  Onunla birkaç yıl önce bir düğünde tanıştım.