| Month-long Islamic observance |
| Robust religious observance? |
| 40-weekday observance |
| Observance made official by President Wilson in 1914 |
| Christian observance celebrated on Feb. 2 |
| Yom Kippur observance |
| Lent observance |
| October observance |
| Ash Wednesday-to-Easter observance |
| Kosher restaurant's observance |
| Subject of a September observance |
| Astronomical observances |
| Annual 34-wk. observance |
| Observance through Oct. |
| Like a solemn observance |
| Observance before Easter |
| Post-Mardi Gras observance |
| Summer observance: Abbr. |
| Lenten observance |
| Spring observance |
| Arbor ___ (spring observance) |
| Christian observance |
| Yearly observance: Abbr. |
| Ramadan observance |
| Annual observance celebrating commitment to the planet |
| 40-day observance, roughly |
| Religious observance |
| Observance that lasts 40 days |
| Church observance |
| Dawn observance |