Could we please have a separate search tag for (duplicate) questions?
45915
Add a duplicate:0|1 search operator
49227
Help us find duplicates efficiently
77231
Span Stack Exchange sites for tags, searches, and related questions
57284
How do I search for questions with (or without) specific tags?
4110
Let the search find questions by ID
117416
How do I select a question with particular tags?
146576
Askers should be able to close their own question as a duplicate
28716
Is it OK to ask a duplicate question on purpose?
106952
"Please ask a new question" encourages question repetition for duplicates
102097
How to find all questions that were duplicates of another question?
81564
Should questions be tagged with both a tag and a "sub-tag"?
135386
Should bug-report/feature-request *questions* that duplicate Grab-bag *answers* be closed as duplicates?
156434
Tagging multiple questions at the same time?
71646
Duplicates of an outdated question
134819
Search results showing questions without the searched for tag in results
146225
Duplicate questions on other SE sites?
149645
Can we have a full list of related questions?