1. a close, familiar, and usually affectionate or loving personal relationship
2. a quiet and private atmosphere
3. detailed knowledge from close personal experience

Examples

• The couple shared a deep intimacy after years of marriage.
• She valued the intimacy of their friendship above all else.
• The small restaurant provided an atmosphere of warmth and intimacy.
• They spoke in the intimacy of the garden, away from prying eyes.
• His intimacy with the subject matter was evident in his detailed lecture.
• The memoir revealed her intimacy with the political events of that era.
• The intimacy of the concert hall made every note feel personal.