| ENERO | First month, south of the border |
| ROMANOV | Imperial family's month south of Italian capital |
| JAN | Abbr. for the first month of the year (and the first name of the creator who makes your Kids Across Parents Down puzzles) |
| NISAN | The first month of the year in the Jewish calendar |
| ITHASCHERRYDAYS | April is the first month of the year of which this is true (2,3,6,4) |
| TISHRI | The first month of the civil year in the Hebrew calendar (6) |
| TISRI | The first month of the civil year in the Hebrew calendar (5) |
| TUSHRI | The first month of the civil year. |
| JANUARY | The first month of the year (7) |
| JANUS | God for whom the first month of the year is named |
| VENDEMIAIRE | First month of the French Revolutionary calendar (1793-1805), commencing on the autumnal equinox; from Latin, 'vintage' (4,2,1,1,3) |
| NEONATAL | In the first month of life |
| APRIL | First month of the M.L.B. season, typically |
| SEPTEMBER | The first month of spring in New Zealand (9) |
| ABIB | First month of the Jewish ecclesiastical year |
| APR | First month of the second quarter: Abbr. |
| RIODEJANEIRO | South American city named after the first month |
| MUHARRAM | First month of the Islamic calendar |
| DECEMBER | The first month of summer in New Zealand (8) |
| MAR | First month in the first Roman calendar (abbr.) |
