I apparently don't have enough "tag score" to even suggest these so let me suggest them manually here on meta:
There is something wrong with the current situation.
Currently, male-speech is a synonym for masculine-speech, but there are two questions with male-speech which are not converted to masculine-speech. Similarly, female-speech is a synonym for feminine-speech, but there are five questions with female-speech.
If we go with masculine-speech and feminine-speech, then the older tags should be merged to the newer tags. If not, then the synonyms should not have been created. Currently I do not have a particular opinion which is better.
For the record, here is a complete list of questions with each of these tags as of writing.
Maybe a better solution is to make all of them synonyms of a new tag with a wider scope like an umbrella term. After all some of the questions mention or compare both types of speech.
Maybe:
I'm sure somebody can come up with a better variant too.
I'm not sure they're synonyms… Can't you have some male feminine speach?
masculine/feminine sound to me as subjective, unlike male/female.
