It is the willful contracting of a second marriage when the contracting party knows that the first is still valid; or it is the state of a man who has two wives, or of a woman who has two husbands living at the same time. When the man has more than two wives, or the woman more than two husbands living at the same time, then the party is said to have committed polygamy, but the name of bigamy is more frequently given to this offense in legal proceedings.