patrol

1. A detachment used for security or reconnaissance (synset 108233097)
   is a type of: detachment - a small unit of troops of special composition
2. The activity of going around or through an area at regular intervals for security purposes (synset 100826469)
   is a type of: protection - the activity of protecting someone or something
   subtypes:

   • airborne patrol - a patrol provided by aircraft
   • round-the-clock patrol - a continuous nonstop patrol
3. A group that goes through a region at regular intervals for the purpose of security (synset 108346040)
   is a type of: force, personnel - group of people willing to obey orders
   subtypes:

   • border patrol - a group of officers who patrol the borders of a country
   • harbor patrol - patrol of officers who police a harbor area
   member holonym: patroller - someone on patrol duty; an individual or a member of a group that patrols an area

1. Maintain the security of by carrying out a patrol (synset 202460361)
   is a type of: guard - to keep watch over
   same as: police

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