| nightfall(noun, end, dark, evening, night) |
| nighttime(noun, dark, night, twilight) |
| owl-light(noun, dark, evening, night) |
| shadow(noun, dark, gloom, black, darkness) |
| dim(noun, dark, gloom, black, darkness) |
| night-time(expression, end, night, eventide) |
| night time(expression, end, night, eventide) |
| obscurity(noun, dark, gloom, black, darkness) |
| owllight(noun, dark, evening, night, twilight) |
| breakdown(noun, time, decrease, period) |
| come-down(noun, time, decrease, period) |
| decadence(noun, time, decrease, period) |
| decay(noun, time, decrease, period) |
| decaying(noun, time, decrease, period) |
| declension(noun, time, decrease, period) |
| degeneracy(noun, time, decrease, period) |
| degradation(noun, time, decrease, period) |
| depression(noun, time, decrease, period) |
| deterioration(noun, time, decrease, period) |
| down-grade(noun, time, decrease, period) |