Difference between Charnel House and Semidarkness

CHARNEL HOUSE vs SEMIDARKNESS: NOUN

A vault or other building in which the bones of the dead are stored
A place, usually under or near a church, where the bones of the dead are deposited; formerly, and still in parts of Brittany, a kind of portico or gallery, in or near a churchyard, over which the bones of the dead were laid after the flesh was consumed.
A scene or place of great physical suffering and loss of life.
A building, room, or vault in which the bones or bodies of the dead are placed; a charnel.
A vault or building where corpses or bones are deposited

Moldering, Corpses, Detritus, Ghastly, Pigpen, Soulless, Hellhole, Wasteland, Hovel, Rubbish heap, Catacomb, Cesspool, Graveyard, Fetid, Charnel

Flyblown, Squalid, Moldering, Corpses, Detritus, Ghastly, Soulless, Wasteland, Hovel, Rubbish heap, Catacomb, Cesspool, Graveyard, Fetid, Charnel

Assisted by a young German surgeon named Singer and an elderly retired surgeon named Gallaudet, we the students were initiated into the charnel house.
Several of the planting crew had lost their meager lunches in the charnel house, so Sam sent them outside to dig the grave.
So it was that Vesta found herself the sole living person in the palace that had become a charnel house.
Cementerio de Santa Maria Magdalena de Pazzis, main avenue of old section, to the left Charnel House, camera facing west.
In the very charnel house is the nursery of production and animation.
This place was a frightening charnel house where there were many bones, skulls and human hair.
Now it asks whether something worthwhile can be built atop that charnel house.

The dogs were still not back, and the only signs of what had happened there was all that yellow tape fluttering in the semidarkness.
Much of the time, Trixia sat in the semidarkness, listening and speaking her translations at the same time.
The little room, cheaply furnished in black walnut, was in semidarkness, the lamp shaded with a newspaper.
Alone and in the semidarkness, the criminal had quietly plotted his actions, then inadvertently left behind the evidence.
And by this time my eyes were getting used to the semidarkness.
In the semidarkness there were groans and shouts of alarm.