Meaning of red-letter day with illustrations and photos. Keep scrolling for more . Monday was a red letter day for her. Share red-letter. The term came into wider use in 1549 when the first Book of Common Prayer included a calendar with holy days marked in red ink; for example, Annunciation (Lady Day), 25th March, was designated in the book as a red-letter day.. Red-letter day definition is - a very happy and important day. Look it up now! Red ball signifying "express" in railroad jargon is 1904, originally (1899) a system of moving and tracking freight cars. A red letter day (sometimes hyphenated as red-letter day or called scarlet day in academia) is any day of special significance or opportunity. We saw losses for days in a row, but Black Tuesday was the worst red letter day of them all. was originally a saint's day, marked on church calendars in red letters. A “red letter day” is a special day, with the implication that it is good. from the practice of marking holy days in red letters in church calendars . The origin is likely lost in antiquity, meaning the first time red was used to mark special days is actually unknown. red letter day (plural red letter days) A particularly significant day or a day to celebrate (personal or sectarian). The term is sometimes written without the hyphen - 'red letter day'. Red letter day | red-letter day | scarlet day. Pronunciation of red-letter day and it's etymology. any day of special significance. See other phrases that were coined in the USA. Definition of red-letter day in the Fine Dictionary. Red-letter day (late 14c.) Related words - red-letter day synonyms, antonyms, hypernyms and hyponyms. Learn More about red-letter. Red-letter day definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Its roots are in classical antiquity; for instance, important days are indicated in red in a calendar dating from the Roman Republic (509–27 BC). Example sentences containing red-letter day The term originates from Medieval church calendars. ... History and Etymology for red-letter. Red-letter definition is - of special significance. Illuminated manuscripts often marked initial capitals and highlighted words in red ink, known as rubrics. She accomplished a lot and had fun doing it. Red dog, type of U.S. football pass rush, is recorded from 1959.