darkness, murkiness

SHADE
WordClue
DUSKdarkness, obscurity
GLOOMDarkness, dimness or obscurity
HEART... of Darkness (Conrad)
DIMNESSdarkness, gloom
DARKNESSmurkiness, dimness
MURKINESSdarkness, dimness
NIGHTFALLdarkness, dusk
OBSCURITYDarkness
OBSCURITYdarkness, murk
GLOOMdarkness, nightfall