Definition

To watch or monitor someone or something closely, often for security or safety reasons.

Example

The police decided to surveil the suspect's activities for several weeks.

Tense Forms

Conversation

Did you hear about the new security measures they want to surveil the campus?

Yeah, I heard they’re trying to keep things safer for everyone.

I wonder how they plan to surveil without invading our privacy.

That’s a good point; they need to find a balance.

Synonyms & Antonyms

Root Explanation

Surveil → It is formed from "sur-" (meaning over or above) and "veiller" (from Old French, meaning to watch or keep awake). The word "surveil" means to watch over or keep an eye on something closely.

Memory Tip

Think of 'watching over' ('sur-') something closely ('veiller') — that's what surveil means.

Visually Confused Words