Rosh Hashanah - ראש השנה
Rosh Hashanah (literally "head of the year,") is a Jewish holiday commonly referred to as the Jewish New Year. It is observed on the first day of Tishrei, the seventh month of the Hebrew calendar. It is ordained in the Torah as Zicaron Terua (זכרון תריעה) ("a memorial with the blowing of horns"), in Leviticus 23:24.
Yom Kippur - יוֹם כִּפּוּר
Yom Kippur, also known as the Day of Atonement, is the holiest day of the year for religious Jews. Its central themes are atonement and repentance. Jews traditionally observe this holy day with a 25-hour period of fasting and intensive prayer, often spending most of the day in synagogue services. Yom Kippur completes the annual period known in Judaism as the High Holy Days.
Days of Repentance - עשרת ימי תשובה
The Ten Days of Repentance (Aseret Yemei Teshuva) are the first ten days of the Jewish month of the Hebrew month of Tishrei, usually sometime in the month of September, beginning with the Jewish holiday of Rosh Hashanah and ending with the conclusion of Yom Kippur.