Monogamy
Part of speech: noun
Definition: A form of sexual bonding involving a permanent pair bond between two beings.
Example sentence: Monogamy is desirable for many reasons, especially in creating a stable, emotionally connected home for children. But judging from centuries of human behavior, it is also a very difficult standard to meet.
Polygamy
Part of speech: noun
Definition: The having of a plurality of socially bonded sexual partners at the same timeCommonly used specifically for polygyny, the marriage of a man to more than one wife, or the practice of having several wives, at the same time.The state or habit of having more than one sexual mate.The condition or state of a plant which bears both perfect and unisexual flowers.
Example sentence: The family code in Egypt is one of the worst family codes in the Arab world. Polygamy. The husband is having absolute power over the family.