Monogamy

Bigamy is having one wife too many. Monogamy is the same.

Do you believe in monogamy?

I'm curious if monogamy is a natural and healthy condition; I'll look it up on the Internet.

Monogamy is overrated.

There's no reason for monogamy to enjoy a privileged position in our society.

If monogamy is your thing, great. It's not for everyone, though.