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HYPHEN
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WORDNET DICTIONARY
THESAURUS

WORDNET DICTIONARY

Noun spying has 3 senses

• spying(n = noun.act) Array - keeping a secret or furtive watch; Array
is a kind of vigil, watch
Derived form verb spy₂

• spying(n = noun.act) undercover work - the act of keeping a secret watch for intelligence purposes; Array
has particulars: espionage
is a kind of intelligence, intelligence activity, intelligence operation
Derived form verb spy₄

• spying(n = noun.act) catching, detection, espial, spotting - the act of detecting something; catching sight of something; Array
is a kind of discovery, find, uncovering
Derived form verb spy₁

THESAURUS

spying

bugging, cloak-and-dagger work, counterespionage, counterintelligence, detection, electronic surveillance, espial, espionage, following, intelligence, intelligence work, looking, lookout, military intelligence, note, notice, observance, observation, regard, respect, secret police, secret service, shadowing, stakeout, surveillance, tailing, trailing, viewing, watch, watching, wiretap, wiretapping, witnessing

For further exploring for "spying" in Webster Dictionary Online