Solution

SENTRIES

3 clues

Guards

Word class: Common noun
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Society

Other solutions to Guards

Lookouts

Word class: Common noun
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Society

Watchmen

Word class: Common noun
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Society

Words are categorized by artificial intelligence: there can be mistakes.