dead of night (?.)
- Egyptian darkness
- Erebus
- awful silence
- blackness
- dark
- darkness
- darkness visible
- dead
- deathlike silence
- golden silence
- hush
- hush of night
- inaudibility
- intense darkness
- lightlessness
- lucid stillness
- lull
- midnight
- moonlessness
- mum
- night
- noiselessness
- noonday night
- obscure
- obscure darkness
- obscurity
- peace
- pitch-darkness
- pitchy darkness
- quiescence
- quiet
- quietness
- quietude
- rest
- silence
- silentness
- solemn silence
- soundlessness
- starlessness
- still
- stillness
- sunlessness
- swarthiness
- tacitness
- taciturnity
- tenebrosity
- tenebrousness
- the palpable obscure
- tomblike silence
- total darkness
- tranquillity
- velvet darkness
- whisht
