January (noun)

1. The first month of the year, in the northern hemisphere usually considered to begin on 1 January and in the southern hemisphere on 1 July.
2. The first month of the year, especially in the Gregorian calendar.
3. The first month of the year, often associated with the start of a new year and the time of resolutions and new beginnings.
4. The first month of the year, which is often cold and dark in many parts of the world.
5. The first month of the year, which is often associated with the holiday of New Year's Day.

Origin:

Middle english: from old french janvier, from latin januarius, from janus (see january).

Examples:

1. January is the coldest month of the year.
2. He was born in January.
3. In January, we make New Year's resolutions.
4. January is the first month of the year.
5. Many people start new jobs or projects in January.