shadowing

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the act of following someone secretly
• Syn:
tailing
• Derivationally related forms:
tail (for: tailing), shadow
• Hypernyms:
pursuit, chase, pursual, following

• Từ đồng nghĩa / Synonyms:
  tail, shadower, trace, vestige, tincture, apparition, phantom, phantasm, phantasma, fantasm, darkness, dark, overshadow, dwarf, shade, shade off