Definition that contains january 1
- goat the tenth sign of the zodiac; the sun is in this sign from about December 22 to January 19
- circumcision (Roman Catholic Church and Anglican Church) feast day celebrating the circumcision of Jesus; celebrated on January 1st
- capricorn the tenth sign of the zodiac; the sun is in this sign from about December 22 to January 19
- martin luther king day observed on the Monday closest to January 15
- feast of the circumcision (Roman Catholic Church and Anglican Church) feast day celebrating the circumcision of Jesus; celebrated on January 1st
- martin luther king jr's birthday observed on the Monday closest to January 15
- civil year the year (reckoned from January 1 to December 31) according to Gregorian calendar
- january 1 (Roman Catholic Church and Anglican Church) feast day celebrating the circumcision of Jesus; celebrated on January 1st
- calendar year the year (reckoned from January 1 to December 31) according to Gregorian calendar
- kwajalein an amphibious assault in the Pacific in World War II (January 1944); American forces landed and captured a Japanese air base