pregnancy, conception / (slang, derogatory, video games) a Nintendo fanboy, Nintendrone

the number of people

authorization

authorize

two persons / a couple, pair

popularity

arbitrary, as one wants or thinks / free, up to a person, according to their will, voluntary

any choices, arbitrary selections / free will

(grammar) second person

(dated) one's family, (especially) one's wife / household; family and servants living within a house / (dated) household servants; retainers living in or frequently entering a noble family's house