shadow

noun

1.
shade within clear boundaries
Derived from:
shadow shadowy
2.
an unilluminated area
dark darkness
Derived from:
shadow
3.
something existing in perception only
apparition fantasm phantasm phantasma phantom
Derived from:
shadowy
4.
a premonition of something adverse
5.
an indication that something has been present
tincture trace vestige
6.
refuge from danger or observation
7.
a dominating and pervasive presence
Derived from:
shadow
8.
a spy employed to follow someone and report their movements
shadower tail
Derived from:
shadow
9.
an inseparable companion
Derived from:
shadow