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Synonyms

spy on

Idioms  
  1. Secretly or furtively observe someone or something, as in The children loved spying on the grownups, or The company sent him to spy on the competitor's sales force. [Early 1600s]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The island’s internal espionage and counterintelligence apparatus includes some 100,000 officials and informants who spy on the population and monitor every street, workplace and university, García said.

From The Wall Street Journal • May 16, 2026

“Havana Affair” has a lively espionage theme: “Sent to spy on a Cuban talent show / First stop Havana go-go.”

From The Wall Street Journal • Apr. 27, 2026

His presence with Natalie's family in the days and weeks after her death, and even his attempt to spy on their conversations.

From BBC • Mar. 23, 2026

She further alleged that Schmidt had built a “backdoor” to Google servers with a team of company engineers that allowed him to spy on her and anyone with a Google account.

From Los Angeles Times • Mar. 6, 2026

While the grown-ups sit at the table, telling jokes and laughing, I go back to the baby’s room to spy on Rosa, listening to her breathe and let out little sighs as she dreams.

From "Lucky Broken Girl" by Ruth Behar

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