Definition of ditto mark in English:
ditto mark
Pronunciation /ˈdidō ˌmärks/ /ˈdɪdoʊ ˌmɑrks/
noun
A symbol formed from two apostrophes (〃) representing ‘ditto’.
‘The links in their blogrolls could simply be replaced with ditto marks and it wouldn't affect them at all.’
- ‘‘Let go,’ she encouraged me, using air ditto marks and winking at me again cheekily.’
- ‘Those folks were not empty heads waiting to be filled with ditto marks.’