American English

Definition of spy verb from the Oxford Advanced American Dictionary



    Verb Forms present simple I / you / we / they spy
    he / she / it spies
    past simple spied
    -ing form spying
    jump to other results
  1. 1[intransitive] to collect secret information about another country, organization, or person He spied for his government for more than ten years.
  2. 2[transitive] spy somebody/something (literary or formal) to suddenly see or notice someone or something In the distance we spied the Pacific for the first time.
  3. Phrasal Verbsspy on somebody/somethingspy somethingout
See the Oxford Advanced Learner's Dictionary entry: spy