1. [ noun ] personal knowledge or information about someone or something
Synonyms: acquaintance conversancy conversance
Related terms: information acquaint
2. [ noun ] close or warm friendship
Synonyms: intimacy closeness

"the absence of fences created a mysterious intimacy in which no one knew privacy"

Related terms: friendliness camaraderie
3. [ noun ] usualness by virtue of being familiar or well known
Related terms: unfamiliarity usualness familiar unfamiliar
4. [ noun ] a casual manner
Synonyms: casualness
Related terms: informality slanginess
5. [ noun ] an act of undue intimacy
Synonyms: indecorum liberty impropriety
Related terms: misbehavior
Similar spelling:   familiar