guard boat
Học thuậtThân thiện
Definition
Noun: A guard boat is a vessel assigned to patrol and protect a specific area, typically a harbor or anchorage, and to monitor the perimeter around a fleet of warships or other important assets. Its primary duty is surveillance and security.
Usage
A "guard boat" is used as a countable noun. It refers to the specific boat performing a sentry or patrol function. * The guard boat circled the harbor entrance throughout the night. * A fleet at anchor will always have a guard boat on duty.
Examples
- The admiral ordered a guard boat to intercept the unidentified vessel approaching the fleet.
- During the naval exercise, the guard boat was responsible for challenging all incoming traffic.
Advanced Usage
- The term is often used in historical and military contexts to describe patrol craft used for harbor defense.
- It can imply a state of alert or readiness, as in "The harbor was secured by several guard boats."
Variants and Related Words
- Patrol boat: A more general term for a fast, mobile vessel used for coastal defense, law enforcement, or patrol duties. A guard boat is a type of patrol boat with a specific, stationary protective function.
- Pickett boat: A historical or alternative term for a boat stationed as a lookout or guard.
- Security vessel: A broader, modern term that encompasses guard boats and other craft used for protective purposes.
Synonyms
- Sentry boat
- Watch boat
- Patrol craft (in a specific guard context)
Related Phrases
- On guard duty: The state of performing a protective watch. (e.g., The sailors were on guard duty aboard the guard boat.)
- To stand guard: To act as a sentry or protector. (e.g., A single vessel stood guard over the anchorage.)
Noun
- a boat that is on guard duty (as in a harbor) around a fleet of warships