For questions concerning tag-synonyms.
For questions concerning tag-synonyms.
For more details see: What are tag synonyms and merged tags? How do they work?
The complete list of tag synonyms (including suggested tag synonyms) is available here: http://mathoverflow.net/tags/synonyms
You can also see the list of synonyms that are pending in the tags where you can vote on tag synonyms (=the tags where you have score 5 or higher): https://mathoverflow.net/tags/synonyms?tab=Newest&filter=Suggested