D defs.my
Entry 2 senses Webster, 1913

Cohabitation

/kōh-ăbˌ-ət-āsh'-ən/ · Co·hab·i·ta·tion · IPA /koʊhæbɪˈteɪʃən/
01 n. The act or state of dwelling together, or in the same place with another.
  1. 1.
    The act or state of dwelling together, or in the same place with another.
  2. 2.
    The living together of a man and woman in supposed sexual relationship.(Law)
    “That the duty of cohabitation is released by the cruelty of one of the parties is admitted.” — Lord Stowell.