n. (pl. -ies)
1. the state of being well known (the familiarity of the scene).
2 (foll. by with) close acquaintance.
3 a close relationship.
4 a sexual intimacy. b (in pl.) acts of physical intimacy.
5 familiar or informal behaviour, esp. excessively so.
Etymology: ME f. OF familiarit{eacute} f. L familiaritas -tatis (as FAMILIAR)