period

PERIOD noun

[ C ] uk/ˈpɪəriəd/ us period noun [C]
(SCHOOL/SPORTS)

B1 one of the equal parts of time that a school day or sports game is divided into

урок, период
period noun [C]
(MARK)

a mark (.) used at the end of a sentence, or to show that the letters before it are an abbreviation

точка (в конце предложения)