Usually means: Secretly observe someone for information.
Definitions Related words Phrases Mentions
We found 9 dictionaries that define the word spy on:

General (8 matching dictionaries)
  1. spy on: Longman Dictionary of Contemporary English
  2. spy on: Merriam-Webster
  3. spy on: Oxford Learner's Dictionaries
  4. spy on: Wiktionary
  5. spy on: Dictionary.com
  6. spy on: AllWords.com Multi-Lingual Dictionary

Miscellaneous (1 matching dictionary)
  1. spy on: Idioms

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Definitions from Wiktionary (spy on)

▸ verb:  To watch secretly or covertly; to surveil.

Similar:
snoop, shadow, outspy, listen in, creep on, espy, scout, tail, lurk, bespy, more...

Types:
monitor, eavesdrop, surveil, bug, wiretap, more...

Phrases:
to spy on, be a spy on one side, more...

▸ Words similar to spy on

▸ Usage examples for spy on

▸ Idioms related to spy on

▸ Wikipedia articles (New!)

▸ Words that often appear near spy on

▸ Rhymes of spy on

▸ Invented words related to spy on

Similar:
snoop, shadow, outspy, listen in, creep on, espy, scout, tail, lurk, bespy, more...

Types:
monitor, eavesdrop, surveil, bug, wiretap, more...

Phrases:
to spy on, be a spy on one side, more...



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