red-letter
31red-letter day — UK / US noun [countable] Word forms red letter day : singular red letter day plural red letter days informal a very happy or exciting day …
32red-letter\ day — n. phr. A holiday; memorable day (usually printed in red on calendars). The Fourth of July is a red letter day. It was a red letter day for Felix, when he won the lottery …
33red-letter day — n. an important day that might well be marked in red on the calendar. □ Today was a red letter day in our history. □ It was a red letter day for our club …
34red-letter day — /rɛd ˈlɛtə deɪ / (say red letuh day) noun a memorable or especially happy occasion: a red letter day for someone. {from the practice, begun in the 15th century, of printing the dates of saints days and feast days in red in Christian church… …
35red letter day — noun A particularly significant day (personal or sectarian), usually very positive, sometimes very negative. Monday was a red letter day for her. She accomplished a lot and had fun doing it. Ant: black letter day …
36red letter day — A red letter day is a one of good luck, when something special happens to you. (Dorking School Dictionary) …
37red-letter day — See a red letter day …
38red letter day — a day that is memorable because of some important event Saturday was a red letter day when we finally won the championship …
39Red letter day — A red letter day is a one of good luck, when something special happens to you …
40red-letter — adjective Etymology: from the practice of marking holy days in red letters in church calendars Date: 1704 of special significance …