'acquaintance' definitions:

Definition of 'acquaintance'

From: WordNet
noun
Personal knowledge or information about someone or something [syn: acquaintance, familiarity, conversance, conversancy]
noun
A relationship less intimate than friendship [syn: acquaintance, acquaintanceship]
noun
A person with whom you are acquainted; "I have trouble remembering the names of all my acquaintances"; "we are friends of the family" [syn: acquaintance, friend] [ant: alien, stranger, unknown]