noun (n)

• communication between individuals(noun.communication)

  Synonym:
  social intercourse
  

  source: wordnet30
• the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur(noun.act)

  Synonym:
  carnal knowledge, coition, coitus, congress, copulation, relation, sex act, sexual congress, sexual intercourse, sexual relation
  

  source: wordnet30
• A commingling; intimate connection or dealings between persons or nations, as in common affairs and civilities, in correspondence or trade; communication; commerce; especially, interchange of thought and feeling; association; communion.(noun)

  source: webster1913