acquaintance

noun

1. personal knowledge or information about someone or something

   noun.cognition

   Synonyms conversance conversancy familiarity

   Source: WordNet 3.0

2. a relationship less intimate than friendship

   noun.state

   Synonyms acquaintanceship

   Source: WordNet 3.0

3. a person with whom you are acquainted

   noun.person

   Examples

   I have trouble remembering the names of all my acquaintances.

   Synonyms friend

   Antonyms stranger

   Source: WordNet 3.0

4. A state of being acquainted, or of having intimate, or more than slight or superficial, knowledge; personal knowledge gained by intercourse short of that of friendship or intimacy; as, I know the man; but have no <i>acquaintance</i> with him.

   noun

   Source: webster1913