• a dark area or shape produced by a body coming between rays of light and a surface

Synonyms: silhouette, outline, shape, contour, profile

• used in reference to proximity, ominous oppressiveness, or sadness and gloom

Synonyms: cloud, black cloud, pall

• an inseparable attendant or companion

Synonyms: constant companion, inseparable companion, alter ego, second self, Siamese twin

• envelop in shadow; cast a shadow over

Synonyms: overshadow, cast a shadow over, envelop in shadow, shade, block off the light to

• follow and observe (someone) closely and secretly

Synonyms: follow, trail, track, dog someone's footsteps, keep watch on