幽

ghost

deep mountain valleys

ethereal body

hades

rumination

to die

fictitious population

bogus company

bogus (phantom) employee

out-of-body experience

to die

beautiful and quiet scene

member of a (school) club who does not partake in the club's activities

quiet sequestered scene

deep ravine

solitude

orchid

pylorus

darkened room

deep forest

quiet and secluded

ghost character

death

hermitage

distal gastrectomy

ghost story

secret promise made to the gods

memorial ceremony held on the 100th day of a person's death

fragrance

solitude

watered stock

ghost word

deep and remote

ghost fishing (entangling of marine life by lost or abandoned fishing gear)

profoundly quiet

mountain bird

fear makes the wolf bigger than he is

hades

ghost ship

marine spirits

dim

gloom

dark window

profound elegance

haunted house

mysterious profundity

living a quiet life in seclusion away from the masses

a quiet (natural) setting

ghost

ghost

pyloric stenosis

quiet

yūanyaki

secluded place

faint

to confine to a room

deep

faint

spirits of the dead

pholcid spider (any spider of family Pholcidae, esp. species Pholcus crypticolens)

imprisonment

quiet and secluded

semidarkness

Chiroteuthis imperator (species of squid)

modest and beautiful

deep and quiet bamboo grove

confinement

retired and quiet