Darkness, dimness or obscurity

GLOOM
WordClue
DUSKdarkness, obscurity
AGENTinsurance or travel
BRANDAudi or Porsche
COURTappellate or supreme
DANCEtango or flamenco
FLUIDwater or petroleum
HEART... of Darkness (Conrad)
MOTORdiesel or stepping
ORDERfungus or stop-loss
PARTYRepublican or Conservative
POWERsolar or of will
RIVERNeva or Mekong
SHADEdarkness, murkiness
DIMNESSdarkness, gloom
OPACITYobscurity, dimness
DARKNESSobscurity, murk
ANONYMITYobscurity
MURKINESSdarkness, dimness
NIGHTFALLdarkness, dusk
OBSCURITYopacity, dimness
MURKINESSdarkness, dimness
NIGHTFALLdarkness, dusk