Gender neutral version of housewife
Outside of American English, what gender neutral terms are there for "housewife"? There aren't any children involved, so "stay at home parent" isn't applicable.
For example (when addressing an opposite-sex couple who don't have any children) "Is one of you a [requested term]"?
I first considered "house spouse", as "spouse" is a hypernym for husbands and wives, but ngrams indicates that it's much rarer than "househusband" or "house husband", which in turn is much rarer than "housewife".
I've come across homemaker, but it seems to be more American English than British English.
Domestic engineer is well known as an example of a politically correct inflated job title, but is fairly rare (rarer than househusband), and I suspect mostly talked about, or used ironically, rather than used seriously.
Related question, currently closed: "Housewife" vs. "homemaker"
I don't know about British English, but a gender-neutral expression is stay-at-home spouse/partner.
"But if you have one breadwinner and a stay-at-home spouse, you will probably pay less in taxes."
http://www.cnbc.com/2015/06/26/same-sex-marriage-ruling-levels-financial-playing-field.html
As a native British English speaker, I would go with 'homemaker'. It seems like a really 'positive' term.