What does tailer mean?
A tailer is someone who follows, monitors, or keeps track of another person. The term is most naturally associated with investigators, security personnel, police officers, or other people whose work involves following a subject without being noticed. Because it identifies the person doing the tracking rather than the activity itself, a tailer may be described as a covert observer or professional follower. The word is relatively uncommon in everyday conversation and can sound somewhat old-fashioned, though it remains clear and useful in reporting, crime fiction, and descriptions of surveillance operations. In those contexts it conveys sustained observation and, often, the possibility of discovery by the person being followed. The alternative terms follower and tracker are more general and neutral, while words such as operative or surveillance agent tend to suggest a more specific professional role.
nounA person who follows, monitors, or keeps track of someone, especially for investigative or security purposes. The word is relatively uncommon and is usually used in contexts involving surveillance or pursuit.
- A person who follows, monitors, or keeps track of another person, especially for investigative, security, or surveillance purposes.
"The tailer remained several blocks behind the suspect while relaying updates by radio."
"A trained tailer kept watch on the warehouse while the investigators entered through the rear entrance."
"The suspect grew suspicious that a tailer was following him and changed route several times."
The plural is formed by adding -s to the noun.
"The officers assigned two tailers to follow the vehicle."
A tailer turns the familiar idea of following someone into a job description: someone whose task is to keep watch.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does tailer come from?
The word tailer is an English derivation of tail, meaning the rear or end part of an animal, and the occupational suffix -er, which identifies a person who performs an activity. Its sense of someone who follows another person developed from the idea of staying behind someone. It has no widely recognized non-English cognate form because it is formed within English from an existing word and a productive suffix.
Related word forms
How tailer is actually used
This is a relatively uncommon noun, especially outside contexts of surveillance, security, or pursuit. It can sound somewhat old-fashioned or occupational, and modern speakers may more often say follower, tracker, or surveillance operative.
Easily confused with tailer
A tailer follows or tracks someone, whereas a tailor designs or makes clothing.