punctually C2+

/ˈpʌŋktʃuəli/ at the appointed time; on time

punctilious C2+

/pʌŋkˈtɪliəs/ showing great attention to detail or correct behavior

punctuate C2+

/ˈpʌŋktʃuˌeɪt/ to insert punctuation marks, or to interrupt at intervals