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patrol boat

patrol boat

7 3.5
A small boat that watches for danger and protects a coast or harbor
  • noun
  • /pəˈtroʊl boʊt/
  • Specialized
translation icon : patrullera
  • The patrol boat monitored the coastline for illegal fishing activity.
  • a 123-foot patrol boat
  • a foot patrol boat
  • a Japanese patrol boat

So that is a South Korean patrol boat that was shot at by the North Koreans.

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Examples

Synonyms

vessel
vspatrol boat
698 3.3

A large boat or ship used for travel on water

is a specific small craft used to monitor and protect particular areas
gunboat
vspatrol boat
  • Specialized
7 6.6

A small armed boat that moves in shallow water near coasts and rivers

is less focused on heavy armament and more on routine area monitoring
patrol ship
vspatrol boat
  • Specialized
4 3.7

A ship used by the navy or coast guard to watch and protect the sea

is a smaller craft focused on local monitoring and security tasks
police boat
vspatrol boat
3 3.0

Police officers use a boat to patrol harbors and keep people safe on the water

is used broadly by military or security forces to monitor and protect areas
gunship
vspatrol boat
  • Specialized
3 5.0

A small armed boat used near coasts or rivers to patrol and fight

is more about routine area protection than heavy combat capability
PT boat
vspatrol boat
  • Archaic
2 8.1

A small fast US Navy boat with torpedoes used in World War II

is the peacetime security form used to monitor and protect local areas
guard boat
vspatrol boat
  • Specialized
1 5.2

A boat that watches and protects a harbor or ships

serves the same area protection role but across varied security forces
torpedo boat
vspatrol boat
  • Specialized
1 6.3

A small fast military boat that fires underwater bombs near the coast

is oriented to monitoring and protecting areas rather than offensive attacks
picket boat
vspatrol boat
  • Specialized
8.0

A small boat that patrols and watches for danger near a harbor or fleet

covers guarding duties too but is defined for general area monitoring and security
vedette
vspatrol boat
  • Archaic
9.9

A small fast boat used to scout and carry messages for larger ships

focuses on ongoing area monitoring and protection rather than only scouting
motor torpedo boat
vspatrol boat
  • Archaic
8.1

A small fast navy boat that carries torpedoes to attack ships

leans toward security and law enforcement monitoring rather than attack focus
mosquito craft
vspatrol boat
  • Archaic
9.2

A small, fast boat with light weapons used to attack or patrol

serves security and area watching rather than primarily offensive missions
mosquito boat
vspatrol boat
  • Archaic
8.1

A small, fast war boat used for quick attacks and patrols

focuses more on ongoing local protection and law enforcement use

How Big

destroyer
  • Specialized
62 7.3
frigate
  • Archaic
7 9.9
corvette
  • Specialized
43 8.2
patrol boat
  • Specialized
7 3.5
dinghy
18 4.8

Surface Forms

patrol boat singular
patrol boats plural

Morphology

patrol + boat

The meaning 'a small vessel used to monitor or protect an area' is directly derivable from combining 'patrol' (the activity/unit that monitors an area) with 'boat' (a small craft) — i.e. a boat used for patrol. This is a regular, compositional noun+noun compound common across languages, so a B1 learner who knows both constituents would readily understand it.

Etymology

Patrol boat comes from two simple words: a patrol is moving around to watch and a boat is a small ship. Picture a small, fast boat going back and forth along the coast to spot trouble, so it means 'a small boat that watches and protects an area'.