Shadowing

Verb
shadowing



Noun

 * 1) The effect of being shadowed (in the sense of blocked), as from a light source or radio transmission.
 * 2) Speech shadowing is when an individual repeats speech as they hear it immediately without delay (usually through earphones).
 * 3)  Secretly or discreetly tracking or following someone, keeping under surveillance.

Thesaurus
ambuscade, ambush, ambushment, blackening, blind, blocking the light, booby trap, bugging, chase, chasing, cloak-and-dagger work, clouding, counterespionage, counterintelligence, darkening, dimming, dogging, eclipsing, electronic surveillance, espial, espionage, extinguishment, follow, follow-up, following, heeling, hounding, hue and cry, hunting, intelligence, intelligence work, lurking hole, military intelligence, obfuscation, obnubilation, obscuration, obscurement, observation, obumbration, occulting, overcast, overclouding, overshading, overshadowing, overshadowment, prosecution, pursual, pursuance, pursuing, pursuit, quest, searching, secret police, secret service, seeking, sequel, sequence, series, shading, spying, stakeout, stalking, stalking-horse, surveillance, tailing, tracking, tracking down, trailing, trap, wiretap, wiretapping

Noun

 * French: effet de masque


 * Chinese:
 * Mandarin: 鸚鵡學舌, 鹦鹉学舌,  影子跟讀,  影子跟读


 * German: Schattenlesen
 * Japanese: シャドーイング, シャドウイング
 * Russian: шэдоуинг