punctilio

/pʌŋkˈtɪlioʊ/
noun
  1. A fine point or detail of behavior, ceremony, or procedure, especially one that shows careful attention to rules or etiquette.
    • She insisted on following each punctilio of the traditional tea ceremony.
    • The diplomat observed every punctilio of protocol during the state dinner.
    • His punctilio in addressing everyone by their proper title made a good impression.
What does "punctilio" mean? | whatsthatwordmean | whatsthatwordmean