shadow >> ˈʃadəʊ
Definition: [noun] a dark area or shape produced by a body coming between rays of light and a surface.
Example: trees cast long shadows
Definition: [noun] used in reference to proximity, ominous oppressiveness, or sadness and gloom.
Example: the shadow of war fell across Europe
Definition: [noun] an inseparable attendant or companion.
Example: her faithful shadow, a Yorkshire terrier called Heathcliffe
Definition: [noun] short for eyeshadow.
Definition: [verb] envelop in shadow; cast a shadow over.
Example: the market is shadowed by St Margaret's church
Definition: [verb] follow and observe (someone) closely and secretly.
Example: he had been up all night shadowing a team of poachers