Как по Английски будет 一夫一妻制

The practice of marrying or state of being married to one person at a time.

Of or relating to monogamy; practising monogamy, monogamous.

Involving marriage to one person at a time.

In a way that involves marriage to one person at a time.

Monogamy.

The custom of having only one wife at a time.

A person who practises or advocates monogyny.

Having only one pistil.

The worship of one god without denial of the existence of other gods.