Sentence:  An &#39;outside wife&#39; has limited social recognition and status because her husband typically refuses to declare her publicly as his wife. She also has much less social and politico-jural recognition than an &#39;<WSD>inside wife</WSD>&#39; [...] 
Meaning of the word marked with <WSD> tags:  Legally married to or related to (e.g. born in wedlock to), and/or residing with, a specified other person (parent, child, or partner);  existing between two such people.