head·mas·ter / ˌhedˈmɑːstə(r); NAmE -ˈmæs-/, head·mis·tress /ˌhedˈmɪstrəs/ noun
(becoming old-fashioned ) ( NAmE usually prin·ci·pal ) a teacher who is in charge of a school, especially a private school
—see also head teacher
head·mas·ter / ˌhedˈmɑːstə(r); NAmE -ˈmæs-/, head·mis·tress /ˌhedˈmɪstrəs/ noun
(becoming old-fashioned ) ( NAmE usually prin·ci·pal ) a teacher who is in charge of a school, especially a private school
—see also head teacher
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005