Post here tag synonym proposals for voting.
For example: what tags should by synonyms of "quantum-mechanics"? See also this meta post.
This post can also be used to suggest minor changes to a tag, e.g. pluralization.
Before creating a new answer, please go to here or to https://physics.stackexchange.com/tags/write-here-master/synonyms (where the write-here-master part of the URL is appropriately replaced) and check that your tag synonym has not already been proposed.
Moreover, it is recommended to only suggest a tag synonym if the tag is used at least twice. (Tags that are only used once will expire automatically by themselves after some time.)