A spouse is the husband or wife of a person. This is a common word indicating "someone you are married to." This word is often used in forms/applications, etc.

the thing that you don’t have when you’re phones percentage is over 20

That person, friend and companion who is always there to help you with the problems you would never have had if you were single.

How you refer to a same sex partner if you do not wish to implicitly come out to the person to whom you are speaking.

female of any description