What is it called when you use quotation marks to signify repeating a word or phrase? [duplicate]

For example, let's say I'm copying instructions by hand. The original instructions say:

  • Multiply the first by the second
  • Integrate the third with the fourth
  • Integrate the third with the fifth

And on a page I write:

  • Multiply the first by the second
  • Integrate the third with the fourth
  • "" with the fifth

I know this example is silly, but hopefully it's clear what I mean.

What is this called?


Solution 1:

They are ditto marks.

ditto stems from the Tuscan dialect of the Italian detto - 'said'; Latin dictus - 'said'.

Oxford Dictionaries Online.