at (direction) russian

• за

  behind

  at (location)

  at (direction)

  for (in support of)

  for (mistake for)

  for (reason)

  for (duration)

  following after, chasing after

  over (a certain age)

  beyond, on the far side of

  out of (location)

• попу́тный

  passing

  on the way in the same direction or happening at the same time

Examples

• Лекарства следует испо́льзовать только по указа́нию врача́.Drugs should be used only at the direction of a doctor.