от альфы до омеги

• ОТ А ДО Я (прочитать, знать что и т.п.; ОТ А ДО ЗЕТ; ОТ АЛЬФЫ ДО ОМЕГИ lit; ОТ АЗА ДО ИЖИЦЫ obs, lit

[PrepP; these forms only; adv; fixed WO]

=====

⇒ (to read sth.) from the very beginning to the very end; (to know sth.) thoroughly:

- [of books, journals etc] (read sth.) from cover to cover;

- [of documents](read sth.) from top to bottom;

- (know sth.) from A to Z;

- (know sth.) inside out.

—————

← Refers to the first and last letters of the Russian, Latin, Greek, and Slavonic alphabets, respectively.