Since English is not my mother tounge, I looked it up. Oxford actually has (as one of three definitions): either member of a married couple or of an establish

Since English is not my mother tounge, I looked it up. Oxford actually has (as one of three definitions): either member of a married couple or of an established unmarried couple. "she lived with her partner" a person with whom one has sex; a lover. "make sure that you or your partner are using an effective method of contraception"